CVE-2016-7097
medium
CVSS v3
4.4
CVSS v4 NEW
—
VIR risk
4.4
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.
Predictions
Exploit likelihood
44%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.7.8-1 |
| debian | bullseye | fixed | 4.7.8-1 |
| debian | forky | fixed | 4.7.8-1 |
| debian | sid | fixed | 4.7.8-1 |
| debian | trixie | fixed | 4.7.8-1 |
| linux-kernel | affected | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef
- http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/08/26/3
- http://www.securityfocus.com/bid/92659
- http://www.securitytracker.com/id/1038201
- http://www.spinics.net/lists/linux-fsdevel/msg98328.html
- 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=1368938
- https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef
- https://source.android.com/security/bulletin/2017-04-01
- https://support.f5.com/csp/article/K31603170?utm_source=f5support&%3Butm_medium=RSS
- https://www.suse.com/security/cve/CVE-2016-7097.html
- https://security-tracker.debian.org/tracker/CVE-2016-7097
CWEs
CWE-285
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.