CVE-2008-1367
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 2.79% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- gnu/gcc
- Source
- cve@mitre.org
References
- 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%3Ba=commit%3Bh=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/2008/3/5/207Exploit
- 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/oval%3Aorg.mitre.oval%3Adef%3A11108
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469058
- http://gcc.gnu.org/ml/gcc-patches/2008-03/msg00417.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.