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Gentoo Linux Security Advisory GLSA 200907-03 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: APR Utility Library: Multiple vulnerabilities |
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Date: July 04, 2009 |
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Bugs: #268643, #272260, #274193 |
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ID: 200907-03 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in the Apache Portable Runtime Utility Library |
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might enable remote attackers to cause a Denial of Service or disclose |
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sensitive information. |
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|
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Background |
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========== |
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|
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The Apache Portable Runtime Utility Library (aka apr-util) provides an |
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interface to functionality such as XML parsing, string matching and |
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databases connections. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-libs/apr-util < 1.3.7 >= 1.3.7 |
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|
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Description |
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=========== |
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|
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Multiple vulnerabilities have been discovered in the APR Utility |
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Library: |
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|
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* Matthew Palmer reported a heap-based buffer underflow while |
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compiling search patterns in the apr_strmatch_precompile() function |
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in strmatch/apr_strmatch.c (CVE-2009-0023). |
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|
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* kcope reported that the expat XML parser in xml/apr_xml.c does not |
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limit the amount of XML entities expanded recursively |
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(CVE-2009-1955). |
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|
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* C. Michael Pilato reported an off-by-one error in the |
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apr_brigade_vprintf() function in buckets/apr_brigade.c |
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(CVE-2009-1956). |
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|
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Impact |
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====== |
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|
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A remote attacker could exploit these vulnerabilities to cause a Denial |
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of Service (crash or memory exhaustion) via an Apache HTTP server |
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running mod_dav or mod_dav_svn, or using several configuration files. |
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Additionally, a remote attacker could disclose sensitive information or |
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cause a Denial of Service by sending a specially crafted input. NOTE: |
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Only big-endian architectures such as PPC and HPPA are affected by the |
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latter flaw. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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|
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All Apache Portable Runtime Utility Library users should upgrade to the |
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latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/apr-util-1.3.7" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2009-0023 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0023 |
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[ 2 ] CVE-2009-1955 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1955 |
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[ 3 ] CVE-2009-1956 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1956 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200907-03.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2009 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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