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Gentoo Linux Security Advisory GLSA 200404-11 |
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http://security.gentoo.org |
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Severity: High |
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Title: Multiple Vulnerabilities in pwlib |
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Date: April 09, 2004 |
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Bugs: #45846 |
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ID: 200404-11 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilites have been found in pwlib that may lead to a |
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remote denial of service or buffer overflow attack. |
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Background |
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========== |
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pwlib is a multi-platform library designed for OpenH323. |
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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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dev-libs/pwlib <= 1.5.2-r2 >= 1.5.2-r3 |
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Description |
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=========== |
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|
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Multiple vulnerabilities have been found in the implimentation of |
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protocol H.323 contained in pwlib. Most of the vulnerabilies are in the |
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parsing of ASN.1 elements which would allow an attacker to use a |
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maliciously crafted ASN.1 element to cause unpredictable behavior in |
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pwlib. |
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Impact |
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====== |
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An attacker may cause a denial of service condition or cause a buffer |
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overflow that would allow arbitrary code to be executed with root |
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privileges. |
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Workaround |
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========== |
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Blocking ports 1719 and 1720 may reduce the likelihood of an attack. |
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All users are advised to upgrade to the latest version of the affected |
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package. |
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Resolution |
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========== |
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All pwlib users are advised to upgrade to version 1.5.2-r3 or later: |
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# emerge sync |
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# emerge -pv ">=dev-libs/pwlib-1.5.2-r3" |
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# emerge ">=dev-libs/pwlib-1.5.2-r3" |
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References |
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========== |
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[ 1 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0097 |
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[ 2 ] http://www.uniras.gov.uk/vuls/2004/006489/h323.htm |
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Availability |
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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-200404-11.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 2004 Gentoo Technologies, 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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http://creativecommons.org/licenses/by-sa/1.0 |
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