CVE-2015-5706
medium
CVSS v3
โ
CVSS v4 NEW
โ
VIR risk
4.6
Description
Use-after-free vulnerability in the path_openat function in fs/namei.c in the Linux kernel 3.x and 4.x before 4.0.4 allows local users to cause a denial of service or possibly have unspecified other impact via O_TMPFILE filesystem operations that leverage a duplicate cleanup operation.
Predictions
Exploit likelihood
20%
Patch ETA
โ
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 โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ 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
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| โ | Affected | 4.0.4 |
Ubuntu Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 14.04 | Affected | โ |
| 12.04 | Affected | โ |
Debian Mixed 7 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.0.4-1 |
| sid | Fixed | 4.0.4-1 |
| forky | Fixed | 4.0.4-1 |
| bullseye | Fixed | 4.0.4-1 |
| bookworm | Fixed | 4.0.4-1 |
| 8.0 | Affected | โ |
| 7.0 | Affected | โ |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0
- http://twitter.com/grsecurity/statuses/597127122910490624
- http://www.debian.org/security/2015/dsa-3329
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4
- http://www.openwall.com/lists/oss-security/2015/08/01/5
- http://www.securityfocus.com/bid/76142
- http://www.ubuntu.com/usn/USN-2680-1
- http://www.ubuntu.com/usn/USN-2681-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1250047
- https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0
- https://source.android.com/security/bulletin/2017-01-01.html
- https://security-tracker.debian.org/tracker/CVE-2015-5706
CWEs
CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.