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Debian 3.1 DSA 1121-1 Critical: Postgrey Remote Format String Attack

Peter Bieringer discovered that postgrey, an greylisting implementation for Postfix, is vulnerable to a format string attack that allows remote attackers to the daemon.. - --------------------------------------------------------------------------Debian Security Advisory DSA 1121-1 This email address is being protected from spambots. You need JavaScript enabled to view it. http://www.debian.org/security/ Martin Schulze July 24th, 2006 http://www.debian.org/security/faq - --------------------------------------------------------------------------Package : postgrey Vulnerability : format string Problem type : remote Debian-specific: no CVE ID : CVE-2005-1127 Peter Bieringer discovered that postgrey, an greylisting implementation for Postfix, is vulnerable to a format string attack that allows remote attackers to the daemon. For the stable distribution (sarge) this problem has been fixed in version 1.21-1sarge1. For the stable distribution (sarge) this problem has also been fixed in version 1.21-1volatile4 in the volatile archive. For the unstable distribution (sid) this problem has been fixed in version 1.22-1. We recommend that you upgrade your postgrey package. Upgrade Instructions - --------------------wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given at the end of this advisory: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 3.1 alias sarge - -------------------------------- Source archives: Size/MD5 checksum: 628 2a0d8c903c9f47b374a9fa871056b5df Size/MD5 checksum: 13354 96eefd0e11745edf1cce5fa833d83396 Size/MD5 checksum: 25934 1274e073be5178445e0892a9dcc6fe98 Architecture independent components: Size/MD5 checksum: 41526 43de6a5366b7df928212489a84ec127f These files will probably be moved into the stable distribution on its next update. - ---------------------------------------------------------------------------------For apt-get: deb https://www.debian.org/security/ stable/updates main For dpkg-ftp: dists/stable/updates/main Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. . A vulnerability has been discovered in postgrey for Debian that could trigger a remote denial of service. Users are strongly urged to apply the suggested updates to resolve this issue. Postgrey Update, Format String Issue, Debian Security, Remote Exploit, DoS Threat. . Severity: Critical. LinuxSecurity.com Team

Jul 24, 2006 •Critical Debian