Vulnerability Description
The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.8.3 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://rhn.redhat.com/errata/RHSA-2013-1051.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.4
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/03/11/8
- http://www.ubuntu.com/usn/USN-1787-1
- http://www.ubuntu.com/usn/USN-1788-1
- http://www.ubuntu.com/usn/USN-1792-1
- http://www.ubuntu.com/usn/USN-1793-1
- http://www.ubuntu.com/usn/USN-1794-1
- http://www.ubuntu.com/usn/USN-1795-1
- http://www.ubuntu.com/usn/USN-1796-1
- http://www.ubuntu.com/usn/USN-1797-1
FAQ
What is CVE-2013-0914?
CVE-2013-0914 is a vulnerability with a CVSS score of 3.6 (LOW). The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to b...
How severe is CVE-2013-0914?
CVE-2013-0914 has been rated LOW with a CVSS base score of 3.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-0914?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.