Vulnerability Description
Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.9, < 3.10.83 |
| Fedoraproject | Fedora | 21 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=Broken Link
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1534.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/20/18Mailing List
- http://www.securitytracker.com/id/1032414Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1204722Issue Tracking
- https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ffPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=Broken Link
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1534.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/20/18Mailing List
- http://www.securitytracker.com/id/1032414Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1204722Issue Tracking
- https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ffPatch
FAQ
What is CVE-2015-2666?
CVE-2015-2666 is a vulnerability with a CVSS score of 6.9 (MEDIUM). Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privil...
How severe is CVE-2015-2666?
CVE-2015-2666 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-2666?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora.