Vulnerability Description
The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.19.1 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06c817Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
- http://www.openwall.com/lists/oss-security/2015/03/22/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1204729
- https://github.com/torvalds/linux/commit/06c8173eb92bbfc03a0fe8bb64315857d0badd0Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06c817Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
- http://www.openwall.com/lists/oss-security/2015/03/22/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1204729
- https://github.com/torvalds/linux/commit/06c8173eb92bbfc03a0fe8bb64315857d0badd0Vendor Advisory
FAQ
What is CVE-2015-2672?
CVE-2015-2672 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection agains...
How severe is CVE-2015-2672?
CVE-2015-2672 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-2672?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.