Vulnerability Description
The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.8.2 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931Issue TrackingPatch
- http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2Patch
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/08/26/3Mailing List
- http://www.securityfocus.com/bid/92659
- http://www.securitytracker.com/id/1038201
- http://www.spinics.net/lists/linux-fsdevel/msg98328.htmlPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-3146-1
- http://www.ubuntu.com/usn/USN-3146-2
- http://www.ubuntu.com/usn/USN-3147-1
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1368938Issue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caePatchThird Party Advisory
FAQ
What is CVE-2016-7097?
CVE-2016-7097 is a vulnerability with a CVSS score of 4.4 (MEDIUM). The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setg...
How severe is CVE-2016-7097?
CVE-2016-7097 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-7097?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.