Vulnerability Description
arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.1.5 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=810bc0
- http://www.debian.org/security/2015/dsa-3313
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6Vendor Advisory
- http://www.openwall.com/lists/oss-security/2015/07/22/7
- http://www.securityfocus.com/bid/76003
- http://www.ubuntu.com/usn/USN-2687-1
- http://www.ubuntu.com/usn/USN-2688-1
- http://www.ubuntu.com/usn/USN-2689-1
- http://www.ubuntu.com/usn/USN-2690-1
- http://www.ubuntu.com/usn/USN-2691-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1243489
- https://github.com/torvalds/linux/commit/810bc075f78ff2c221536eb3008eac6a492dba2
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=810bc0
- http://www.debian.org/security/2015/dsa-3313
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6Vendor Advisory
FAQ
What is CVE-2015-3291?
CVE-2015-3291 is a vulnerability with a CVSS score of 2.1 (LOW). arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of ser...
How severe is CVE-2015-3291?
CVE-2015-3291 has been rated LOW with a CVSS base score of 2.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-3291?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.