PostgreSQL 累计漏洞修正版

     <p>PostgreSQL 开发团队今天发布了所有版本分支的小更新版本，分别是：9.1.1, 9.0.5, 8.4.9, 8.3.16 and 8.2.22.</p>    <p>强烈建议所有 PostgreSQL 立即升级！</p>    <p>从今年开始 PostgreSQL 社区将停止发布 8.2 版本的更新，建议使用 8.2 版本的用户升级到更新的版本。</p>    <p><strong>PostgreSQL</strong> 是一个自由的<span class="new">对象-关系数据库</span>服务器(数据库管理系统)，它在灵活的 BSD-风格许可证下发行。它提供了相对其他开放源代码数据库系统(比如 MySQL 和 Firebird)，和对专有系统比如 Oracle、<span class="new">Sybase</span>、IBM 的 <span class="new">DB2</span> 和 Microsoft SQL Server的一种选择。</p>    <p>PostgreSQL 不寻常的名字导致一些读者停下来尝试拼读它，特别是那些把SQL拼读为"sequel"的人。PostgreSQL 开发者把它拼读为 "post-gress-Q-L"。(<span class="external text">Audio sample</span>, 5.6k MP3)。它也经常被简略念为 "postgres"。</p>    <p>这次发布的更新版本主要修复了很多的bug以及一些潜在的导致程序崩溃和数据损坏的问题，包括：</p>    <ul>     <li>Applied upstream fix in contrib/pg_crypto for blowfish signed-character bug (CVE-2011-2483), where encryption code could give wrong results on platforms where char is signed (which is most), leading to encrypted passwords being weaker than they should be;</li>     <li>Work-around for gcc 4.6.0 bug that breaks WAL replay; </li>     <li>Fixed memory leak at end of a GiST index scan;</li>     <li>Improved handling of SSL errors;</li>     <li>Fixed SSPI login when multiple roundtrips are required (typical error reported was "The function requested is not supported"); </li>     <li>Fixed VACUUM so that it always updates pg_class.reltuples and pg_class.relpages; </li>     <li>Allowed the planner to assume that empty parent tables really are empty; </li>     <li>Disallowed SELECT FOR UPDATE/SHARE on sequences; </li>     <li>Fixed failure when DROP OWNED BY attempts to remove default privileges on sequences. </li>    </ul>    <p>该版本包含：11 patches to <a href="/misc/goto?guid=4958191671859667263">9.1</a>, 147 patches to <a href="/misc/goto?guid=4958191672605851259">9.0</a>, 96 patches to <a href="/misc/goto?guid=4958191673336185961">8.4</a>, 73 patches to <a href="/misc/goto?guid=4958191674076858405">8.3</a> and 52 patches to <a href="/misc/goto?guid=4958191674818667538">8.2</a>.</p>    <p>下载地址：<a href="/misc/goto?guid=4958190069694815913">download page</a></p>