CVE-2008-1367 Information

Description

gcc 4.3.x does not generate a cld instruction while compiling functions used for string manipulation such as memcpy and memmove on x86 and i386 which can prevent the direction flag (DF) from being reset in violation of ABI conventions and cause data to be copied in the wrong direction during signal handling in the Linux kernel which might allow context-dependent attackers to trigger memory corruption. NOTE: this issue was originally reported for CPU consumption in SBCL.

Reference

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469058 http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00417.html http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00428.html http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00432.html http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00499.html http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e40cd10ccff3d9fbffd57b93780bee4b7b9bff51 http://lists.opensuse.org/opensuse-security-announce/2008-06/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00002.html http://lists.vmware.com/pipermail/security-announce/2008/000023.html http://lkml.org/lkml/2008/3/5/207 http://lwn.net/Articles/272048/Comments http://marc.info/?l=git-commits-head&m=120492000901739&w=2 http://rhn.redhat.com/errata/RHSA-2008-0508.html http://secunia.com/advisories/30110 http://secunia.com/advisories/30116 http://secunia.com/advisories/30818 http://secunia.com/advisories/30850 http://secunia.com/advisories/30890 http://secunia.com/advisories/30962 http://secunia.com/advisories/31246 http://www.redhat.com/support/errata/RHSA-2008-0211.html http://www.redhat.com/support/errata/RHSA-2008-0233.html http://www.securityfocus.com/bid/29084 http://www.vupen.com/english/advisories/2008/2222/references https://bugzilla.redhat.com/show_bug.cgi?id=437312 https://exchange.xforce.ibmcloud.com/vulnerabilities/41340 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A11108