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81 lines
2.8 KiB
81 lines
2.8 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="200408-16">
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<title>glibc: Information leak with LD_DEBUG</title>
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<synopsis>
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glibc contains an information leak vulnerability allowing the debugging of
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SUID binaries.
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</synopsis>
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<product type="ebuild">glibc</product>
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<announced>2004-08-16</announced>
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<revised count="04">2006-05-28</revised>
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<bug>59526</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="alpha arm hppa ia64 sparc s390">
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<unaffected range="ge">2.3.2-r11</unaffected>
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<vulnerable range="le">2.3.2-r10</vulnerable>
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</package>
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<package name="sys-libs/glibc" auto="yes" arch="x86 ppc">
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<unaffected range="ge">2.3.3.20040420-r1</unaffected>
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<vulnerable range="le">2.3.3.20040420</vulnerable>
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</package>
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<package name="sys-libs/glibc" auto="yes" arch="mips">
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<unaffected range="ge">2.3.4.20040619-r1</unaffected>
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<vulnerable range="le">2.3.3.20040420</vulnerable>
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</package>
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<package name="sys-libs/glibc" auto="yes" arch="amd64">
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<unaffected range="ge">2.3.4.20040619-r1</unaffected>
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<vulnerable range="le">2.3.4.20040619</vulnerable>
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</package>
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<package name="sys-libs/glibc" auto="yes" arch="ppc64">
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<unaffected range="ge">2.3.4.20040808</unaffected>
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<vulnerable range="le">2.3.4.20040605</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 defines various Unix-like "system calls" and other
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basic facilities needed for a standard POSIX-like application to
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operate.
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</p>
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</background>
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<description>
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<p>
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Silvio Cesare discovered a potential information leak in glibc. It
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allows LD_DEBUG on SUID binaries where it should not be allowed. This
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has various security implications, which may be used to gain
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confidentional information.
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</p>
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</description>
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<impact type="low">
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<p>
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An attacker can gain the list of symbols a SUID application uses and
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their locations and can then use a trojaned library taking precendence
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over those symbols to gain information or perform further exploitation.
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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. All users are encouraged to
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upgrade to the latest available version of glibc.
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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 glibc 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 -pv your_version
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# emerge your_version</code>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1453">CVE-2004-1453</uri>
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</references>
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<metadata tag="submitter" timestamp="2004-08-05T17:16:41Z">
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jaervosz
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</metadata>
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</glsa>
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