Vulnerability Description
The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a "MOV SS, NULL selector" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.9.4 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=33ab91Issue TrackingThird Party Advisory
- http://www.debian.org/security/2017/dsa-3791
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/01/19/2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95673Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1615
- https://access.redhat.com/errata/RHSA-2017:1616
- https://bugzilla.redhat.com/show_bug.cgi?id=1414735Issue TrackingPatch
- https://github.com/torvalds/linux/commit/33ab91103b3415e12457e3104f0e4517ce12d0fIssue TrackingPatchThird Party Advisory
- https://usn.ubuntu.com/3754-1/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=33ab91Issue TrackingThird Party Advisory
- http://www.debian.org/security/2017/dsa-3791
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5Release NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/01/19/2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95673Third Party AdvisoryVDB Entry
FAQ
What is CVE-2017-2583?
CVE-2017-2583 is a vulnerability with a CVSS score of 8.4 (HIGH). The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a "MOV SS, NULL selector" instruction, which allows guest OS users to cause a ...
How severe is CVE-2017-2583?
CVE-2017-2583 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-2583?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.