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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200403-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ http://security.gentoo.org - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ Severity: Normal ~ Title: Libxml2 URI Parsing Buffer Overflow Vulnerabilities ~ Date: March 06, 2004 ~ Bugs: #42735 ~ ID: 200403-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer overflow has been discovered in libxml2 versions prior to 2.6.6 which may be exploited by an attacker allowing the execution of arbitrary code. Description =========== Yuuichi Teranishi discovered a flaw in libxml2 versions prior to 2.6.6. When the libxml2 library fetches a remote resource via FTP or HTTP, libxml2 uses parsing routines that can overflow a buffer caused by improper bounds checking if they are passed a URL longer than 4096 bytes. Impact ====== If an attacker is able to exploit an application using libxml2 that parses remote resources, then this flaw could be used to execute arbitrary code. Workaround ========== No workaround is available; users are urged to upgrade libxml2 to 2.6.6. Resolution ========== All users are recommended to upgrade their libxml2 installation: ~ # emerge sync ~ # emerge -pv ">=dev-libs/libxml2-2.6.6" ~ # emerge ">=dev-libs/libxml2-2.6.6" References ========== ~ [ 1 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0110 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFASl4EMMXbAy2b2EIRAv+yAJ9NbGSqlVb4KzZ2IC4c2DBt3aaV1ACgxlhB 1c1NaJh9ByyfACBlmAU0Yz4= =scAU -----END PGP SIGNATURE-----