CVE-2014-7843
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
4.9
Description
The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.
Predictions
Exploit likelihood
20%
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 | | |
| linux-kernel | affected | | |
| debian | bookworm | fixed | 3.16.7-ckt2-1 |
| debian | bullseye | fixed | 3.16.7-ckt2-1 |
| debian | forky | fixed | 3.16.7-ckt2-1 |
| debian | sid | fixed | 3.16.7-ckt2-1 |
| debian | trixie | fixed | 3.16.7-ckt2-1 |
References
- https://www.suse.com/security/cve/CVE-2014-7843.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=97fc15436b36ee3956efad83e22a557991f7d19d
- http://secunia.com/advisories/62305
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.4
- http://www.openwall.com/lists/oss-security/2014/11/13/5
- http://www.securityfocus.com/bid/71082
- https://bugzilla.redhat.com/show_bug.cgi?id=1163744
- https://github.com/torvalds/linux/commit/97fc15436b36ee3956efad83e22a557991f7d19d
- https://security-tracker.debian.org/tracker/CVE-2014-7843
CWEs
CWE-17
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.