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security advisoryGentoobuffer overflow

Gentoo: 202310-01 Urgent: OpenSSL Security Vulnerability Notification

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. [More...]. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200403-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ https://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 ] https://www.cve.org/CVERecord?id=CVE-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 addressedto This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - iD8DBQFASl4EMMXbAy2b2EIRAv+yAJ9NbGSqlVb4KzZ2IC4c2DBt3aaV1ACgxlhB 1c1NaJh9ByyfACBlmAU0Yz4=scAU -----END PGP SIGNATURE----- . Mitigating Libxml2 buffer overflow threats in Gentoo to avert execution risk of malicious code.. Gentoo Security, Libxml2 Issues, Buffer Overflow Fix. . LinuxSecurity.com Team

Mar 06, 2004 Gentoo