CVE-2009-2691 Information

Description

The mm_for_maps function in fs/proc/base.c in the Linux kernel 2.6.30.4 and earlier allows local users to read (1) maps and (2) smaps files under proc/ via vectors related to ELF loading a setuid process and a race condition.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=00f89d218523b9bf6b522349c039d5ac80aa536d http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=13f0feafa6b8aead57a2a328e2fca6a5828bf286 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=704b836cbf19e885f8366bccb2e4b0474346c02d http://lkml.org/lkml/2009/6/23/652 http://lkml.org/lkml/2009/6/23/653 http://marc.info/?l=linux-kernel&m=124718946021193 http://marc.info/?l=linux-kernel&m=124718949821250 http://secunia.com/advisories/36265 http://secunia.com/advisories/36501 http://www.debian.org/security/2010/dsa-2005 http://www.openwall.com/lists/oss-security/2009/08/11/1 http://www.securityfocus.com/bid/36019 http://www.vupen.com/english/advisories/2009/2246 https://bugzilla.redhat.com/show_bug.cgi?id=516171 https://exchange.xforce.ibmcloud.com/vulnerabilities/52401 https://rhn.redhat.com/errata/RHSA-2009-1540.html https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html