CVE-2017-17862
medium
CVSS v3
5.5
CVSS v4 NEW
—
VIR risk
5.5
Description
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service.
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 |
|---|---|---|---|
| arch | fixed | 4.14.11.a-1 | |
| debian | bookworm | fixed | 4.14.7-1 |
| debian | bullseye | fixed | 4.14.7-1 |
| debian | forky | fixed | 4.14.7-1 |
| debian | sid | fixed | 4.14.7-1 |
| debian | trixie | fixed | 4.14.7-1 |
| linux-kernel | affected | | |
| debian | 9.0 | affected | |
References
- https://security.archlinux.org/ASA-201801-4
- https://security.archlinux.org/ASA-201801-3
- https://security.archlinux.org/ASA-201801-2
- https://security.archlinux.org/ASA-201801-1
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c131187db2d3fa2f8bf32fdf4e9a4ef805168467
- http://www.securityfocus.com/bid/102325
- http://www.securitytracker.com/id/1040057
- https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-fix-branch-pruning-logic.patch?h=stretch-security
- https://github.com/torvalds/linux/commit/c131187db2d3fa2f8bf32fdf4e9a4ef805168467
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/usn/usn-3523-2/
- https://www.debian.org/security/2017/dsa-4073
- https://www.spinics.net/lists/stable/msg206984.html
- https://security-tracker.debian.org/tracker/CVE-2017-17862
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.