CVE-2016-8650
medium
CVSS v3
5.5
CVSS v4 NEW
—
VIR risk
5.5
Description
The mpi_powm function in lib/mpi/mpi-pow.c in the Linux kernel through 4.8.11 does not ensure that memory is allocated for limb data, which allows local users to cause a denial of service (stack memory corruption and panic) via an add_key system call for an RSA key with a zero exponent.
Predictions
Exploit likelihood
55%
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 | 4.8.11-1 |
| debian | bullseye | fixed | 4.8.11-1 |
| debian | forky | fixed | 4.8.11-1 |
| debian | sid | fixed | 4.8.11-1 |
| debian | trixie | fixed | 4.8.11-1 |
| linux-kernel | affected | |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5527fffff3f002b0a6b376163613b82f69de073
- http://seclists.org/fulldisclosure/2016/Nov/76
- http://www.openwall.com/lists/oss-security/2016/11/24/8
- http://www.securityfocus.com/bid/94532
- http://www.securitytracker.com/id/1037968
- https://access.redhat.com/errata/RHSA-2017:0931
- https://access.redhat.com/errata/RHSA-2017:0932
- https://access.redhat.com/errata/RHSA-2017:0933
- https://access.redhat.com/errata/RHSA-2018:1854
- https://bugzilla.redhat.com/show_bug.cgi?id=1395187
- https://github.com/torvalds/linux/commit/f5527fffff3f002b0a6b376163613b82f69de073
- https://source.android.com/security/bulletin/2017-03-01.html
- https://www.suse.com/security/cve/CVE-2016-8650.html
- https://security-tracker.debian.org/tracker/CVE-2016-8650
CWEs
CWE-20 CWE-399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.