Vulnerability Description
The __tun_chr_ioctl function in drivers/net/tun.c in the Linux kernel before 3.6 does not initialize a certain structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.5.7 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://rhn.redhat.com/errata/RHSA-2013-0744.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/03/05/13
- https://github.com/torvalds/linux/commit/a117dacde0288f3ec60b6e5bcedae8fa37ee0df
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2Patch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://rhn.redhat.com/errata/RHSA-2013-0744.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/03/05/13
- https://github.com/torvalds/linux/commit/a117dacde0288f3ec60b6e5bcedae8fa37ee0df
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2Patch
FAQ
What is CVE-2012-6547?
CVE-2012-6547 is a vulnerability with a CVSS score of 1.9 (LOW). The __tun_chr_ioctl function in drivers/net/tun.c in the Linux kernel before 3.6 does not initialize a certain structure, which allows local users to obtain sensitive information from kernel stack mem...
How severe is CVE-2012-6547?
CVE-2012-6547 has been rated LOW with a CVSS base score of 1.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-6547?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.