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70 lines
2.3 KiB
70 lines
2.3 KiB
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200707-04">
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<title>GNU C Library: Integer overflow</title>
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<synopsis>
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An integer overflow in the dynamic loader, ld.so, could result in the
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execution of arbitrary code with escalated privileges.
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</synopsis>
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<product type="ebuild">glibc</product>
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<announced>July 03, 2007</announced>
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<revised>July 03, 2007: 01</revised>
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<bug>183844</bug>
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<access>local</access>
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<affected>
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<package name="sys-libs/glibc" auto="yes" arch="x86">
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<unaffected range="ge">2.5-r4</unaffected>
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<vulnerable range="lt">2.5-r4</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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The GNU C library is the standard C library used by Gentoo Linux
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systems. It provides programs with basic facilities and interfaces to
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system calls. ld.so is the dynamic linker which prepares dynamically
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linked programs for execution by resolving runtime dependencies and
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related functions.
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</p>
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</background>
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<description>
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<p>
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Tavis Ormandy of the Gentoo Linux Security Team discovered a flaw in
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the handling of the hardware capabilities mask by the dynamic loader.
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If a mask is specified with a high population count, an integer
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overflow could occur when allocating memory.
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</p>
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</description>
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<impact type="normal">
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<p>
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As the hardware capabilities mask is honored by the dynamic loader
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during the execution of suid and sgid programs, in theory this
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vulnerability could result in the execution of arbitrary code with root
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privileges. This update is provided as a precaution against currently
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unknown attack vectors.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=sys-libs/glibc-2.5-r4"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3508">CVE-2007-3508</uri>
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</references>
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<metadata tag="submitter" timestamp="Sun, 01 Jul 2007 18:20:09 +0000">
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taviso
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</metadata>
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<metadata tag="bugReady" timestamp="Tue, 03 Jul 2007 13:34:58 +0000">
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taviso
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</metadata>
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</glsa>
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