CVE-2016-7916
medium
CVSS v3
5.5
CVSS v4 NEW
โ
VIR risk
5.5
Description
Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.
Predictions
Exploit likelihood
55%
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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.5.4-1 |
| debian | bullseye | fixed | 4.5.4-1 |
| debian | forky | fixed | 4.5.4-1 |
| debian | sid | fixed | 4.5.4-1 |
| debian | trixie | fixed | 4.5.4-1 |
| linux-kernel | affected | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3
- http://source.android.com/security/bulletin/2016-11-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4
- http://www.securityfocus.com/bid/94138
- http://www.ubuntu.com/usn/USN-3159-1
- http://www.ubuntu.com/usn/USN-3159-2
- https://bugzilla.kernel.org/show_bug.cgi?id=116461
- https://forums.grsecurity.net/viewtopic.php?f=3&t=4363
- https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3
- https://www.suse.com/security/cve/CVE-2016-7916.html
- https://security-tracker.debian.org/tracker/CVE-2016-7916
CWEs
CWE-362
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.