CVE-2016-7042
medium
CVSS v3
6.2
CVSS v2
4.9
VIR risk
6.2
Description
The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.
Predictions
Exploit likelihood
62%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-7042
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-7042.html
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://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/10/13/5
- http://www.securityfocus.com/bid/93544
- 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=1373966
- https://source.android.com/security/bulletin/2017-01-01.html
- https://www.suse.com/security/cve/CVE-2016-7042.html
- https://security-tracker.debian.org/tracker/CVE-2016-7042
CWEs
CWE-119
Verify integrity in audit chain (admin only). AS-IS.