{"id":1069,"date":"2026-11-14T05:41:00","date_gmt":"2026-11-13T21:41:00","guid":{"rendered":"https:\/\/btc354.com\/index.php\/2026\/11\/14\/pulsemate-security-9e887199989ad22b80c195835b09bcfc35d729094f0b02ccfa12a0abe756b1e8\/"},"modified":"2026-11-14T05:41:00","modified_gmt":"2026-11-13T21:41:00","slug":"pulsemate-security-9e887199989ad22b80c195835b09bcfc35d729094f0b02ccfa12a0abe756b1e8","status":"publish","type":"post","link":"https:\/\/btc354.com\/index.php\/2026\/11\/14\/pulsemate-security-9e887199989ad22b80c195835b09bcfc35d729094f0b02ccfa12a0abe756b1e8\/","title":{"rendered":"PostgreSQL plperl UAF \u6f0f\u6d1e\u6df1\u5ea6\u590d\u76d8\uff1aCVE-2026-116307 \u91cd\u5165\u91ca\u653e\u94fe\u4e0e\u751f\u4ea7\u5e94\u6025\u52a0\u56fa\u5168\u6307\u5357"},"content":{"rendered":"<blockquote class=\"doc-lead\"><p><strong>\u5bfc\u8bed\uff1a<\/strong>PostgreSQL plperl UAF \u6f0f\u6d1e\uff08CVE-2026-116307\uff09\u4ee5 CVSS 8.8 \u7684\u9ad8\u5371\u8bc4\u7ea7\u8fdb\u5165 2026 \u5e74 11 \u6708\u5b89\u5168\u901a\u544a\uff0c\u5176\u6838\u5fc3\u98ce\u9669\u5728\u4e8e\uff1a\u4e00\u4e2a\u4ec5\u5177\u5907\u5bf9\u8c61\u521b\u5efa\u6743\u9650\u7684\u4f4e\u6743\u7528\u6237\uff0c\u53ef\u901a\u8fc7 plperl \u89e3\u91ca\u5668\u91cd\u5165\u89e6\u53d1 use-after-free\uff0c\u6700\u7ec8\u4ee5\u6570\u636e\u5e93\u8fdb\u7a0b\u7684 OS \u7528\u6237\u8eab\u4efd\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u672c\u6587\u4ee5\u67b6\u6784\u5e08\u89c6\u89d2\u5b8c\u6574\u62c6\u89e3\u8be5\u6f0f\u6d1e\u7684\u89e6\u53d1\u65f6\u5e8f\u3001\u5f71\u54cd\u9762\u4e0e\u5de5\u4e1a\u7ea7\u5e94\u6025\u52a0\u56fa\u65b9\u6848\u3002<\/p><\/blockquote>\n<div class=\"doc-spec-grid\">\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\ud83c\udfaf \u6838\u5fc3\u6280\u672f<\/span><span class=\"doc-spec-value\">PostgreSQL plperl \/ SPI \u9884\u7f16\u8bd1\u67e5\u8be2<\/span><\/div>\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\u26a1 \u67b6\u6784\u96be\u5ea6<\/span><span class=\"doc-spec-value\">\u8d44\u6df1\u67b6\u6784\u7ea7 (Level 3-4)<\/span><\/div>\n<div class=\"doc-spec-item\"><span class=\"doc-spec-label\">\ud83d\ude80 \u6838\u5fc3\u6536\u76ca<\/span><span class=\"doc-spec-value\">30 \u5206\u949f\u5185\u5b8c\u6210\u98ce\u9669\u6536\u655b \/ \u963b\u65ad RCE \u94fe\u8def<\/span><\/div>\n<\/div>\n<h2 class=\"doc-h2\">\u4e00\u3001PostgreSQL plperl UAF \u6f0f\u6d1e\u5168\u666f\uff1a\u4ece CVSS 8.8 \u5230\u771f\u5b9e\u653b\u51fb\u9762<\/h2>\n<p class=\"doc-p\">CVE-2026-116307 \u88ab\u5f52\u7c7b\u4e3a plperl \u6269\u5c55\u4e2d\u7684 use-after-free\uff08\u91ca\u653e\u540e\u4f7f\u7528\uff09\u7f3a\u9677\u3002\u5b98\u65b9\u63cf\u8ff0\u975e\u5e38\u514b\u5236\u4f46\u4fe1\u606f\u91cf\u6781\u5927\uff1a<strong>\u201c\u5bf9\u8c61\u521b\u5efa\u8005\u53ef\u901a\u8fc7\u91cd\u5165 plperl\uff0c\u5728\u5916\u5c42\u8c03\u7528\u4ecd\u5728\u6267\u884c\u67d0\u4e2a\u9884\u7f16\u8bd1\u67e5\u8be2\u65f6\u5c06\u5176\u91ca\u653e\uff0c\u4ece\u800c\u4ee5\u8fd0\u884c\u6570\u636e\u5e93\u7684\u64cd\u4f5c\u7cfb\u7edf\u7528\u6237\u8eab\u4efd\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u201d<\/strong>\u8fd9\u53e5\u8bdd\u91cc\u5305\u542b\u4e86\u4e09\u4e2a\u5173\u952e\u8981\u7d20\u2014\u2014\u653b\u51fb\u8005\u8eab\u4efd\u3001\u89e6\u53d1\u673a\u5236\u3001\u6700\u7ec8\u5f71\u54cd\uff0c\u6211\u4eec\u9010\u4e00\u62c6\u89e3\u3002<\/p>\n<ul class=\"doc-list\">\n<li><strong>\u653b\u51fb\u8005\u8eab\u4efd\uff1a<\/strong>\u5e76\u975e\u8d85\u7ea7\u7528\u6237\uff0c\u800c\u662f\u201c\u5bf9\u8c61\u521b\u5efa\u8005\u201d\uff08object creator\uff09\uff0c\u5373\u62e5\u6709 CREATE \u6743\u9650\u3001\u80fd\u5728\u81ea\u6709 schema \u4e2d\u521b\u5efa\u51fd\u6570\/\u8fc7\u7a0b\u7684\u666e\u901a\u89d2\u8272\u3002\u8fd9\u610f\u5473\u7740\u5728\u591a\u79df\u6237\u6216\u5171\u4eab\u6570\u636e\u5e93\u573a\u666f\u4e2d\uff0c\u5a01\u80c1\u6a21\u578b\u88ab\u663e\u8457\u653e\u5927\u3002<\/li>\n<li><strong>\u89e6\u53d1\u673a\u5236\uff1a<\/strong>plperl \u89e3\u91ca\u5668\u91cd\u5165\uff08re-entering plperl\uff09+ \u9884\u7f16\u8bd1\u67e5\u8be2\uff08prepared query\uff09\u5728\u5916\u5c42\u8c03\u7528\u6267\u884c\u671f\u95f4\u88ab\u91ca\u653e\uff0c\u5f62\u6210\u7ecf\u5178\u7684 UAF \u65f6\u5e8f\u7a97\u53e3\u3002<\/li>\n<li><strong>\u6700\u7ec8\u5f71\u54cd\uff1a<\/strong>\u4ee5\u6570\u636e\u5e93\u670d\u52a1\u8fdb\u7a0b\u7684 OS \u7528\u6237\uff08\u901a\u5e38\u662f <code>postgres<\/code>\uff09\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0cCVSS \u5411\u91cf\u4e3a <code>AV:N\/AC:L\/PR:L\/UI:N\/S:U\/C:H\/I:H\/A:H<\/code>\uff0c\u673a\u5bc6\u6027\u3001\u5b8c\u6574\u6027\u3001\u53ef\u7528\u6027\u5168\u90e8\u4e3a High\u3002<\/li>\n<\/ul>\n<div class=\"doc-callout doc-callout-danger\">\n<div class=\"doc-callout-title\">\ud83d\udea8 \u4e25\u91cd\u9690\u60a3\u544a\u8b66<\/div>\n<p>\u8be5\u6f0f\u6d1e\u7684 CVSS \u8bc4\u7ea7\u4e3a 8.8\uff08High\uff09\uff0c\u4f46 Ubuntu \u5b89\u5168\u901a\u544a\u5c06\u5176\u6807\u6ce8\u4e3a medium\uff0c\u4e8c\u8005\u5b58\u5728\u8bc4\u7ea7\u5dee\u5f02\u3002\u4ece\u67b6\u6784\u9632\u5fa1\u89d2\u5ea6\uff0c\u5e94\u4ee5 CVSS 8.8 \u4e3a\u51c6\uff1a\u4f4e\u6743\u9650\u524d\u7f6e\u6761\u4ef6 + \u7f51\u7edc\u53ef\u8fbe + \u65e0\u9700\u7528\u6237\u4ea4\u4e92 + \u5b8c\u6574 RCE \u80fd\u529b\uff0c\u662f\u5178\u578b\u7684\u201c\u4f4e\u95e8\u69db\u9ad8\u6536\u76ca\u201d\u653b\u51fb\u94fe\u3002<\/p><\/div>\n<div class=\"doc-arch-card\">\n<div class=\"doc-arch-header\">\n<div class=\"doc-arch-title-wrap\">\n      <span class=\"doc-arch-title\"><span class=\"icon\">\ud83d\udcd0<\/span> PostgreSQL plperl UAF \u6f0f\u6d1e\u89e6\u53d1\u4e0e\u653b\u51fb\u94fe\u8def\u5168\u666f<\/span><br \/>\n      <span class=\"doc-arch-badge\">\u4f01\u4e1a\u7ea7\u67b6\u6784\u89c4\u8303<\/span>\n    <\/div>\n<div class=\"doc-arch-actions\">\n      <button type=\"button\" class=\"doc-arch-btn btn-copy-raw\">\ud83d\udccb \u590d\u5236\u6e90\u7801<\/button><br \/>\n      <button type=\"button\" class=\"doc-arch-btn btn-zoom-arch\">\ud83d\udd0d \u653e\u5927\u67e5\u770b<\/button>\n    <\/div>\n<\/p><\/div>\n<pre class=\"mermaid\">\nflowchart TD\n    subgraph \u63a5\u5165\u5c42 [\"\u8868\u73b0\u5c42\u4e0e\u63a5\u5165\u7f51\u5173 (Client &amp; Gateway Tier)\"]\n        A[\"\u4f4e\u6743\u89d2\u8272\u8fde\u63a5 (CREATE \u6743\u9650)\"] --&gt; B[\"SQL \u8c03\u7528 plperl \u51fd\u6570\"]\n    end\n    subgraph \u89c4\u5219\u5c42 [\"\u6743\u9650\u6821\u9a8c\u4e0e\u4e0a\u4e0b\u6587\u5c42 (Policy &amp; Context Tier)\"]\n        B --&gt; C[\"plperl \u89e3\u91ca\u5668\u521d\u59cb\u5316\"]\n        C --&gt; D[\"\u5916\u5c42\u8c03\u7528\u6301\u6709\u9884\u7f16\u8bd1\u67e5\u8be2\u53e5\u67c4\"]\n    end\n    subgraph \u9886\u57df\u5c42 [\"\u6838\u5fc3\u6267\u884c\u4e0e\u91cd\u5165\u5f15\u64ce (Core Reentry Tier)\"]\n        D --&gt; E[\"\u51fd\u6570\u4f53\u5185\u91cd\u5165 plperl\"]\n        E --&gt; F[\"\u5185\u5c42\u91ca\u653e\u9884\u7f16\u8bd1\u67e5\u8be2\u5185\u5b58\"]\n        F --&gt; G[\"\u5916\u5c42\u7ee7\u7eed\u4f7f\u7528\u5df2\u91ca\u653e\u6307\u9488 (UAF)\"]\n    end\n    subgraph \u5b58\u50a8\u5c42 [\"\u57fa\u7840\u8bbe\u65bd\u4e0e OS \u6267\u884c\u5c42 (Infrastructure Tier)\"]\n        G --&gt; H[\"\u5806\u5185\u5b58\u5e03\u5c40\u64cd\u63a7\"]\n        H --&gt; I[(\"\u4ee5 postgres OS \u7528\u6237\u6267\u884c\u4efb\u610f\u4ee3\u7801\")]\n    end\n  <\/pre>\n<div class=\"doc-arch-caption\">\u56fe 1: PostgreSQL plperl UAF \u6f0f\u6d1e\u4ece\u4f4e\u6743\u63a5\u5165\u5230 OS \u7ea7\u4ee3\u7801\u6267\u884c\u7684\u56db\u5c42\u653b\u51fb\u94fe\u8def\u6d41\u5411<\/div>\n<\/div>\n<h2 class=\"doc-h2\">\u4e8c\u3001\u539f\u7406\u6df1\u6316\uff1aplperl \u89e3\u91ca\u5668\u91cd\u5165\u4e0e\u9884\u7f16\u8bd1\u67e5\u8be2\u91ca\u653e\u65f6\u5e8f<\/h2>\n<h3 class=\"doc-h3\">2.1 plperl \u7684\u6267\u884c\u6a21\u578b\u4e0e SPI \u9884\u7f16\u8bd1\u67e5\u8be2<\/h3>\n<p class=\"doc-p\">plperl \u662f PostgreSQL \u7684\u53ef\u4fe1 Perl \u8fc7\u7a0b\u8bed\u8a00\u6269\u5c55\uff0c\u5141\u8bb8\u5728\u6570\u636e\u5e93\u5185\u4ee5 Perl \u7f16\u5199\u51fd\u6570\u3002\u5176\u6267\u884c\u6a21\u578b\u7684\u5173\u952e\u5728\u4e8e\uff1a\u6bcf\u6b21\u8c03\u7528 plperl \u51fd\u6570\u65f6\uff0cPostgreSQL \u4f1a\u901a\u8fc7 SPI\uff08Server Programming Interface\uff09\u51c6\u5907\u5e76\u6267\u884c SQL \u8bed\u53e5\u3002\u4e3a\u4e86\u6027\u80fd\uff0cSPI \u652f\u6301\u201c\u9884\u7f16\u8bd1\u67e5\u8be2\u201d\uff08prepared query\uff09\u2014\u2014\u67e5\u8be2\u8ba1\u5212\u88ab\u7f13\u5b58\u5e76\u590d\u7528\uff0c\u5bf9\u5e94\u7684\u5185\u5b58\u4e0a\u4e0b\u6587\uff08MemoryContext\uff09\u5728\u591a\u6b21\u8c03\u7528\u95f4\u4fdd\u6301\u5b58\u6d3b\u3002<\/p>\n<p class=\"doc-p\">\u5f53 plperl \u51fd\u6570\u5185\u90e8\u518d\u6b21\u8c03\u7528\u53e6\u4e00\u4e2a plperl \u51fd\u6570\uff08\u5373\u201c\u91cd\u5165\u201d\uff09\uff0c\u89e3\u91ca\u5668\u6808\u4f1a\u5d4c\u5957\u3002\u6b64\u65f6\uff0c\u5916\u5c42\u8c03\u7528\u6301\u6709\u7684\u9884\u7f16\u8bd1\u67e5\u8be2\u53e5\u67c4\u4ecd\u6307\u5411\u540c\u4e00\u5757\u5185\u5b58\u4e0a\u4e0b\u6587\u3002\u5982\u679c\u5185\u5c42\u8c03\u7528\u8def\u5f84\u4e0a\u89e6\u53d1\u4e86\u8be5\u67e5\u8be2\u7684\u91ca\u653e\uff08\u4f8b\u5982\u901a\u8fc7\u67d0\u4e9b SPI \u7ba1\u7406\u64cd\u4f5c\u6216\u9519\u8bef\u5904\u7406\u8def\u5f84\uff09\uff0c\u5916\u5c42\u8c03\u7528\u8fd4\u56de\u540e\u7ee7\u7eed\u8bbf\u95ee\u8be5\u53e5\u67c4\uff0c\u5c31\u5f62\u6210\u4e86 use-after-free\u3002<\/p>\n<h3 class=\"doc-h3\">2.2 UAF \u7a97\u53e3\u7684\u5f62\u6210\u6761\u4ef6<\/h3>\n<ul class=\"doc-list\">\n<li><strong>\u6761\u4ef6\u4e00\uff1a<\/strong>\u653b\u51fb\u8005\u80fd\u591f\u521b\u5efa plperl \u51fd\u6570\uff08\u9700\u8981 plperl \u6269\u5c55\u5df2\u5b89\u88c5\u4e14\u89d2\u8272\u5177\u5907 CREATE \u6743\u9650\uff09\u3002<\/li>\n<li><strong>\u6761\u4ef6\u4e8c\uff1a<\/strong>\u51fd\u6570\u4f53\u5185\u6784\u9020\u91cd\u5165\u8c03\u7528\uff0c\u4f7f\u5916\u5c42\u4e0e\u5185\u5c42\u5171\u4eab\u540c\u4e00\u9884\u7f16\u8bd1\u67e5\u8be2\u7684\u5f15\u7528\u3002<\/li>\n<li><strong>\u6761\u4ef6\u4e09\uff1a<\/strong>\u5185\u5c42\u8def\u5f84\u89e6\u53d1\u91ca\u653e\uff0c\u5916\u5c42\u8fd4\u56de\u540e\u7ee7\u7eed\u89e3\u5f15\u7528\uff0c\u5f62\u6210\u60ac\u5782\u6307\u9488\u3002<\/li>\n<li><strong>\u6761\u4ef6\u56db\uff1a<\/strong>\u653b\u51fb\u8005\u901a\u8fc7\u5806\u55b7\u5c04\uff08heap grooming\uff09\u63a7\u5236\u91ca\u653e\u540e\u7684\u5185\u5b58\u5185\u5bb9\uff0c\u5c06\u51fd\u6570\u6307\u9488\u6216\u6570\u636e\u7ed3\u6784\u52ab\u6301\u5230\u53ef\u63a7\u5730\u5740\u3002<\/li>\n<\/ul>\n<div class=\"doc-callout doc-callout-info\">\n<div class=\"doc-callout-title\">\ud83d\udca1 \u67b6\u6784\u6838\u5fc3\u51b3\u7b56<\/div>\n<p>UAF \u6f0f\u6d1e\u7684\u53ef\u6015\u4e4b\u5904\u4e0d\u5728\u4e8e\u201c\u91ca\u653e\u201d\u672c\u8eab\uff0c\u800c\u5728\u4e8e\u201c\u91ca\u653e\u540e\u5185\u5b58\u88ab\u91cd\u65b0\u5206\u914d\u5e76\u53ef\u63a7\u201d\u3002PostgreSQL \u7684 MemoryContext \u673a\u5236\u867d\u7136\u63d0\u4f9b\u4e86\u8f83\u5f3a\u7684\u5185\u5b58\u9694\u79bb\uff0c\u4f46\u9884\u7f16\u8bd1\u67e5\u8be2\u53e5\u67c4\u8de8\u4e0a\u4e0b\u6587\u590d\u7528\u7684\u8bbe\u8ba1\uff0c\u4e3a\u653b\u51fb\u8005\u63d0\u4f9b\u4e86\u7a33\u5b9a\u7684\u5229\u7528\u539f\u8bed\u3002\u4fee\u590d\u7248\u672c\u7684\u6838\u5fc3\u6539\u52a8\u6b63\u662f\u52a0\u5f3a\u4e86\u91cd\u5165\u573a\u666f\u4e0b\u7684\u5f15\u7528\u8ba1\u6570\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406\u3002<\/p><\/div>\n<h2 class=\"doc-h2\">\u4e09\u3001\u5f71\u54cd\u8303\u56f4\u4e0e\u7248\u672c\u77e9\u9635\uff1a\u8c01\u5728\u5c04\u7a0b\u4e4b\u5185<\/h2>\n<p class=\"doc-p\">\u6839\u636e\u5b98\u65b9\u901a\u544a\uff0c\u6240\u6709\u4f4e\u4e8e\u4ee5\u4e0b\u7248\u672c\u7684\u5206\u652f\u5747\u53d7\u5f71\u54cd\uff1aPostgreSQL 18.7\u300117.12\u300116.16\u300115.20\u300114.25\u3002Ubuntu \u4fa7\uff0c20.04 LTS \u7684 postgresql-12 \u5305\u5168\u7248\u672c\u53d7\u5f71\u54cd\uff08\u4ece 12.0-1 \u5230 12.22-0ubuntu0.20.04.4\uff09\uff0c\u8fd9\u610f\u5473\u7740\u5927\u91cf\u4ecd\u5728\u8fd0\u884c Ubuntu 20.04 \u7684\u751f\u4ea7\u73af\u5883\u5904\u4e8e\u66b4\u9732\u72b6\u6001\u3002<\/p>\n<div class=\"doc-table-wrapper\">\n<table class=\"doc-table\">\n<thead>\n<tr>\n<th>\u5206\u652f<\/th>\n<th>\u53d7\u5f71\u54cd\u7248\u672c<\/th>\n<th>\u4fee\u590d\u7248\u672c<\/th>\n<th>\u5347\u7ea7\u4f18\u5148\u7ea7<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PostgreSQL 18<\/td>\n<td>&lt; 18.7<\/td>\n<td>18.7<\/td>\n<td><span class=\"badge-tag-green\">P0 \u7acb\u5373\u5347\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 17<\/td>\n<td>&lt; 17.12<\/td>\n<td>17.12<\/td>\n<td><span class=\"badge-tag-green\">P0 \u7acb\u5373\u5347\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 16<\/td>\n<td>&lt; 16.16<\/td>\n<td>16.16<\/td>\n<td><span class=\"badge-tag-green\">P0 \u7acb\u5373\u5347\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 15<\/td>\n<td>&lt; 15.20<\/td>\n<td>15.20<\/td>\n<td><span class=\"badge-tag-green\">P0 \u7acb\u5373\u5347\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>PostgreSQL 14<\/td>\n<td>&lt; 14.25<\/td>\n<td>14.25<\/td>\n<td><span class=\"badge-tag-green\">P0 \u7acb\u5373\u5347\u7ea7<\/span><\/td>\n<\/tr>\n<tr>\n<td>Ubuntu 20.04 postgresql-12<\/td>\n<td>\u5168\u7248\u672c\uff08\u81f3 12.22-0ubuntu0.20.04.4\uff09<\/td>\n<td>\u7b49\u5f85 Ubuntu \u5b89\u5168\u66f4\u65b0<\/td>\n<td><span class=\"badge-tag-green\">P1 \u8bc4\u4f30\u8fc1\u79fb<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"doc-callout doc-callout-warning\">\n<div class=\"doc-callout-title\">\u26a0\ufe0f \u751f\u4ea7\u907f\u5751\u98ce\u9669<\/div>\n<p>PostgreSQL 12 \u5df2\u8fdb\u5165 EOL \u9636\u6bb5\uff0cUbuntu 20.04 \u7684 postgresql-12 \u5305\u867d\u7136\u4ecd\u5728\u7ef4\u62a4\uff0c\u4f46\u4fee\u590d\u8282\u594f\u53ef\u80fd\u6ede\u540e\u4e8e\u4e0a\u6e38\u3002\u5bf9\u4e8e\u4ecd\u5728\u4f7f\u7528 12.x \u7684\u73af\u5883\uff0c\u5efa\u8bae\u5c06\u201c\u5347\u7ea7\u5230 14.25+ \u6216\u66f4\u9ad8\u53d7\u652f\u6301\u5206\u652f\u201d\u7eb3\u5165\u5b63\u5ea6\u67b6\u6784\u6cbb\u7406\u8ba1\u5212\uff0c\u800c\u975e\u4ec5\u4f9d\u8d56\u53d1\u884c\u7248\u8865\u4e01\u3002<\/p><\/div>\n<h2 class=\"doc-h2\">\u56db\u3001\u5e94\u6025\u54cd\u5e94\u4e0e\u52a0\u56fa\u5b9e\u6218\uff1a\u4ece\u68c0\u6d4b\u5230\u4fee\u590d\u7684\u5b8c\u6574\u8def\u5f84<\/h2>\n<h3 class=\"doc-h3\">4.1 \u7b2c\u4e00\u6b65\uff1a\u66b4\u9732\u9762\u68c0\u6d4b<\/h3>\n<p class=\"doc-p\">\u5728\u5347\u7ea7\u4e4b\u524d\uff0c\u5148\u786e\u8ba4\u73af\u5883\u4e2d\u662f\u5426\u5b58\u5728 plperl \u6269\u5c55\u4ee5\u53ca\u54ea\u4e9b\u89d2\u8272\u5177\u5907\u521b\u5efa\u6743\u9650\u3002\u4ee5\u4e0b SQL \u53ef\u5feb\u901f\u5b8c\u6210\u8d44\u4ea7\u76d8\u70b9\uff1a<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-title=\"plperl \u66b4\u9732\u9762\u68c0\u6d4b.sql\">-- 1. \u68c0\u67e5\u662f\u5426\u5b89\u88c5\u4e86 plperl \u6269\u5c55\nSELECT extname, extversion, extnamespace::regnamespace\nFROM pg_extension\nWHERE extname IN ('plperl', 'plperlu');\n\n-- 2. \u5217\u51fa\u6240\u6709 plperl \u51fd\u6570\u53ca\u5176\u5c5e\u4e3b\nSELECT n.nspname AS schema_name,\n       p.proname AS function_name,\n       pg_get_userbyid(p.proowner) AS owner,\n       l.lanname AS language\nFROM pg_proc p\nJOIN pg_language l ON l.oid = p.prolang\nJOIN pg_namespace n ON n.oid = p.pronamespace\nWHERE l.lanname IN ('plperl', 'plperlu')\nORDER BY schema_name, function_name;\n\n-- 3. \u68c0\u67e5\u54ea\u4e9b\u89d2\u8272\u5177\u5907 CREATE \u6743\u9650\uff08\u6f5c\u5728\u653b\u51fb\u8005\uff09\nSELECT r.rolname, n.nspname, has_schema_privilege(r.rolname, n.nspname, 'CREATE') AS can_create\nFROM pg_roles r\nCROSS JOIN pg_namespace n\nWHERE n.nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast')\n  AND has_schema_privilege(r.rolname, n.nspname, 'CREATE')\n  AND r.rolname NOT LIKE 'pg_%'\nORDER BY r.rolname, n.nspname;<\/pre>\n<h3 class=\"doc-h3\">4.2 \u7b2c\u4e8c\u6b65\uff1a\u7248\u672c\u5347\u7ea7\uff08\u9996\u9009\u4fee\u590d\uff09<\/h3>\n<p class=\"doc-p\">\u5bf9\u4e8e Debian\/Ubuntu \u73af\u5883\uff0c\u901a\u8fc7\u5b98\u65b9\u4ed3\u5e93\u5347\u7ea7\u5230\u4fee\u590d\u7248\u672c\u662f\u6700\u76f4\u63a5\u7684\u8def\u5f84\u3002\u5347\u7ea7\u524d\u52a1\u5fc5\u5b8c\u6210\u903b\u8f91\u5907\u4efd\u4e0e\u4e3b\u4ece\u5207\u6362\u6f14\u7ec3\u3002<\/p>\n<details class=\"doc-accordion\">\n<summary>\u70b9\u51fb\u5c55\u5f00\uff1aUbuntu\/Debian \u5347\u7ea7\u6267\u884c\u547d\u4ee4\u4e0e\u56de\u6eda\u9884\u6848<\/summary>\n<div class=\"doc-accordion-content\">\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"bash\" data-enlighter-title=\"upgrade-postgresql.sh\"># 1. \u5347\u7ea7\u524d\u5907\u4efd\uff08\u903b\u8f91\u5907\u4efd + \u5173\u952e\u914d\u7f6e\uff09\nsudo -u postgres pg_dumpall -f \/backup\/pg_all_$(date +%F).sql\nsudo cp -a \/etc\/postgresql \/backup\/etc_postgresql_$(date +%F)\n\n# 2. \u66f4\u65b0\u8f6f\u4ef6\u6e90\u5e76\u5347\u7ea7 PostgreSQL \u76f8\u5173\u5305\nsudo apt update\nsudo apt install --only-upgrade postgresql postgresql-contrib\n\n# 3. \u786e\u8ba4\u7248\u672c\nsudo -u postgres psql -c \"SELECT version();\"\n\n# 4. \u82e5\u4f7f\u7528 PGDG \u5b98\u65b9\u6e90\uff08\u63a8\u8350\u83b7\u53d6\u6700\u65b0\u5c0f\u7248\u672c\uff09\nsudo apt install -y postgresql-common\nsudo \/usr\/share\/postgresql-common\/pgdg\/apt.postgresql.org.sh\nsudo apt update\nsudo apt install --only-upgrade postgresql-16\n\n# 5. \u91cd\u542f\u5e76\u9a8c\u8bc1 plperl \u6269\u5c55\u72b6\u6001\nsudo systemctl restart postgresql\nsudo -u postgres psql -c \"SELECT extname, extversion FROM pg_extension WHERE extname LIKE 'plperl%';\"<\/pre>\n<\/p><\/div>\n<\/details>\n<h3 class=\"doc-h3\">4.3 \u7b2c\u4e09\u6b65\uff1a\u65e0\u6cd5\u7acb\u5373\u5347\u7ea7\u65f6\u7684\u4e34\u65f6\u7f13\u89e3<\/h3>\n<p class=\"doc-p\">\u82e5\u56e0\u4e1a\u52a1\u7a97\u53e3\u9650\u5236\u65e0\u6cd5\u7acb\u5373\u5347\u7ea7\uff0c\u53ef\u91c7\u53d6\u4ee5\u4e0b\u7eb5\u6df1\u9632\u5fa1\u63aa\u65bd\u964d\u4f4e\u653b\u51fb\u9762\u3002\u6ce8\u610f\uff1a\u8fd9\u4e9b\u63aa\u65bd\u662f\u7f13\u89e3\u800c\u975e\u4fee\u590d\uff0c\u4e0d\u80fd\u66ff\u4ee3\u8865\u4e01\u3002<\/p>\n<ul class=\"doc-list\">\n<li><strong>\u79fb\u9664\u6216\u7981\u7528 plperl\uff1a<\/strong>\u82e5\u4e1a\u52a1\u672a\u4f7f\u7528 plperl\uff0c\u76f4\u63a5 <code>DROP EXTENSION plperl;<\/code> \u5e76\u79fb\u9664 <code>postgresql-plperl-*<\/code> \u5305\u3002<\/li>\n<li><strong>\u6536\u7d27 CREATE \u6743\u9650\uff1a<\/strong>\u64a4\u9500\u666e\u901a\u89d2\u8272\u5728 public schema \u7684 CREATE \u6743\u9650\uff0c\u6539\u4e3a\u6309\u9700\u6388\u6743\u5230\u72ec\u7acb schema\u3002<\/li>\n<li><strong>\u9650\u5236 plperlu\uff1a<\/strong>plperlu\uff08\u4e0d\u53ef\u4fe1 Perl\uff09\u672c\u8eab\u5177\u5907\u66f4\u5f3a\u80fd\u529b\uff0c\u5e94\u786e\u4fdd\u4ec5\u8d85\u7ea7\u7528\u6237\u53ef\u521b\u5efa\u3002<\/li>\n<li><strong>\u7f51\u7edc\u5c42\u6536\u655b\uff1a<\/strong>\u901a\u8fc7 pg_hba.conf \u9650\u5236\u6765\u6e90 IP\uff0c\u51cf\u5c11\u7f51\u7edc\u53ef\u8fbe\u9762\u3002<\/li>\n<\/ul>\n<div class=\"baota-config-bar\"><span>REVOKE CREATE ON SCHEMA public FROM PUBLIC;<\/span><span class=\"lang-tag\">SQL<\/span><\/div>\n<div class=\"baota-config-bar\"><span>DROP EXTENSION IF EXISTS plperl CASCADE;<\/span><span class=\"lang-tag\">SQL<\/span><\/div>\n<h2 class=\"doc-h2\">\u4e94\u3001\u67b6\u6784\u7ea7\u53cd\u601d\uff1a\u6269\u5c55\u751f\u6001\u7684\u5b89\u5168\u6cbb\u7406<\/h2>\n<p class=\"doc-p\">PostgreSQL plperl UAF \u6f0f\u6d1e\u518d\u6b21\u63d0\u9192\u6211\u4eec\uff1a\u6570\u636e\u5e93\u7684\u5b89\u5168\u8fb9\u754c\u4e0d\u4ec5\u53d6\u51b3\u4e8e\u5185\u6838\uff0c\u66f4\u53d6\u51b3\u4e8e\u6269\u5c55\u751f\u6001\u3002plperl\u3001plpython\u3001pljava \u7b49\u8fc7\u7a0b\u8bed\u8a00\u6269\u5c55\u5728\u63d0\u4f9b\u7075\u6d3b\u6027\u7684\u540c\u65f6\uff0c\u4e5f\u5c06\u6570\u636e\u5e93\u8fdb\u7a0b\u66b4\u9732\u5728\u66f4\u590d\u6742\u7684\u8fd0\u884c\u65f6\u98ce\u9669\u4e4b\u4e0b\u3002\u4f5c\u4e3a\u67b6\u6784\u5e08\uff0c\u5efa\u8bae\u5728\u7ec4\u7ec7\u5185\u5efa\u7acb\u4ee5\u4e0b\u6cbb\u7406\u673a\u5236\uff1a<\/p>\n<ul class=\"doc-list\">\n<li><strong>\u6269\u5c55\u767d\u540d\u5355\uff1a<\/strong>\u751f\u4ea7\u73af\u5883\u4ec5\u5141\u8bb8\u5b89\u88c5\u7ecf\u8fc7\u5b89\u5168\u8bc4\u5ba1\u7684\u6269\u5c55\uff0cplperl\/plperlu \u9ed8\u8ba4\u4e0d\u542f\u7528\u3002<\/li>\n<li><strong>\u6700\u5c0f\u6743\u9650\u6a21\u578b\uff1a<\/strong>\u4e1a\u52a1\u89d2\u8272\u4e0d\u5e94\u5177\u5907 public schema \u7684 CREATE \u6743\u9650\uff0c\u51fd\u6570\u521b\u5efa\u8d70\u5ba1\u6279\u6d41\u7a0b\u3002<\/li>\n<li><strong>\u7248\u672c\u8ba2\u9605\uff1a<\/strong>\u8ba2\u9605 PostgreSQL \u5b89\u5168\u901a\u544a\u4e0e OSV \u6570\u636e\u6e90\uff0c\u5c06\u5c0f\u7248\u672c\u5347\u7ea7\u7eb3\u5165\u6708\u5ea6\u8fd0\u7ef4\u7a97\u53e3\u3002<\/li>\n<li><strong>\u8fd0\u884c\u65f6\u9632\u62a4\uff1a<\/strong>\u6570\u636e\u5e93\u8fdb\u7a0b\u4ee5\u4e13\u7528\u4f4e\u6743 OS \u7528\u6237\u8fd0\u884c\uff0c\u914d\u5408 seccomp\/AppArmor \u9650\u5236\u7cfb\u7edf\u8c03\u7528\u9762\u3002<\/li>\n<\/ul>\n<div class=\"doc-callout doc-callout-info\">\n<div class=\"doc-callout-title\">\ud83d\udca1 \u67b6\u6784\u6838\u5fc3\u51b3\u7b56<\/div>\n<p>\u5bf9\u4e8e\u591a\u79df\u6237 SaaS \u67b6\u6784\uff0c\u5efa\u8bae\u5c06\u201c\u662f\u5426\u5141\u8bb8\u79df\u6237\u521b\u5efa plperl \u51fd\u6570\u201d\u4f5c\u4e3a\u79df\u6237\u9694\u79bb\u7b49\u7ea7\u7684\u5173\u952e\u5224\u5b9a\u9879\u3002\u5728\u5171\u4eab\u6570\u636e\u5e93\u5b9e\u4f8b\u6a21\u5f0f\u4e0b\uff0c\u4efb\u4f55\u5177\u5907 CREATE \u6743\u9650\u7684\u79df\u6237\u90fd\u53ef\u80fd\u6210\u4e3a\u653b\u51fb\u8df3\u677f\uff0c\u7269\u7406\u9694\u79bb\u6216\u72ec\u7acb\u5b9e\u4f8b\u662f\u66f4\u7a33\u59a5\u7684\u9009\u62e9\u3002<\/p><\/div>\n<div class=\"doc-callout doc-callout-related\">\n<div class=\"doc-callout-title\">\ud83d\udd17 \u5ef6\u4f38\u9605\u8bfb\u4e0e\u4e13\u680f\u63a8\u8350<\/div>\n<ul class=\"doc-internal-links\">\n<li><strong>\u6240\u5c5e\u4e13\u680f\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/category\/security\/\">\u6d4f\u89c8\u66f4\u591a\u3010\u5b89\u5168\u6f0f\u6d1e\u3011\u6280\u672f\u67b6\u6784\u4e0e\u5de5\u7a0b\u5b9e\u6218\u6587\u7ae0<\/a><\/li>\n<li><strong>\u63a8\u8350\u6df1\u5ea6\u9605\u8bfb\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/2026\/11\/12\/pulsemate-security-0c3ff52603e3ca9da4a9142111d885fb267199dfbccc165403b74dd7c74fd5b7\/\">OS \u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u6df1\u5ea6\u5e94\u6025\u54cd\u5e94\uff1aSoftBank Air Terminal 6 \u9ad8\u5371 root \u63d0\u6743\u94fe\u8def\u62c6\u89e3\u4e0e\u7eb5\u6df1\u9632\u5fa1\u843d\u5730<\/a><\/li>\n<li><strong>\u63a8\u8350\u6df1\u5ea6\u9605\u8bfb\uff1a<\/strong><a href=\"https:\/\/btc354.com\/index.php\/2026\/11\/13\/pulsemate-security-9e564f403c3242a40e746c3cd815897f30208a43ef6d95d1795962a526fe8e2e\/\">AcyMailing \u8d8a\u6743\u6f0f\u6d1e\u6df1\u5ea6\u5e94\u6025\u54cd\u5e94\uff1aCVE-2026-118495 \u8ba2\u9605\u8005\u5bc6\u94a5\u6cc4\u9732\u4e0e GDPR \u6570\u636e\u52ab\u6301\u7684\u67b6\u6784\u7ea7\u52a0\u56fa<\/a><\/li>\n<li><strong>\u5168\u7ad9\u6280\u672f\u5f52\u6863\uff1a<\/strong><a href=\"https:\/\/btc354.com\/\">\u8fd4\u56de \u4e2a\u4eba\u5b66\u4e60\u7ad9\u70b9 \u9996\u9875\u63a2\u7d22\u66f4\u591a\u6280\u672f\u524d\u6cbf<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"doc-ref-box\">\n  <strong>\u539f\u6587\u51fa\u5904\u4e0e\u6743\u5a01\u6eaf\u6e90\u58f0\u660e\uff1a<\/strong><br \/>\n  \u672c\u6587\u6838\u5fc3\u6280\u672f\u80cc\u666f\u6e90\u81ea\u6d77\u5916\u4e00\u7ebf\u6280\u672f\u7814\u7a76\uff1a<br \/>\n  <a href=\"https:\/\/osv.dev\/vulnerability\/UBUNTU-CVE-2026-116307\" target=\"_blank\" rel=\"noopener noreferrer\">OSV &#8211; UBUNTU-CVE-2026-116307 (Canonical Ubuntu Security Notices)<\/a><br \/>\n  <a href=\"https:\/\/www.postgresql.org\/support\/security\/CVE-2026-116307\/\" target=\"_blank\" rel=\"noopener noreferrer\">PostgreSQL \u5b98\u65b9\u5b89\u5168\u901a\u544a CVE-2026-116307<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5ea6\u5256\u6790 PostgreSQL plperl UAF \u6f0f\u6d1e\uff08CVE-2026-116307\uff0cCVSS 8.8\uff09\uff1a\u4ece plperl \u89e3\u91ca\u5668\u91cd\u5165\u673a\u5236\u3001\u9884\u7f16\u8bd1\u67e5\u8be2\u91ca\u653e\u65f6\u5e8f\u5230\u4efb\u610f\u4ee3\u7801\u6267\u884c\u94fe\u8def\u9010\u5c42\u62c6\u89e3\uff0c\u5e76\u7ed9\u51fa 14.25\/15.20\/16.16\/17.12\/18.7 \u5347\u7ea7\u8def\u5f84\u3001Ubuntu \u5305\u4fee\u590d\u77e9\u9635\u4e0e\u751f\u4ea7\u73af\u5883\u5e94\u6025\u52a0\u56fa\u65b9\u6848\uff0c\u52a9 DBA \u4e0e\u67b6\u6784\u5e08\u5728 30 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