CVE-2018-1091

unknown

Published — · Modified —

CVSS v3

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VIR risk

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Description

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	bookworm	fixed	`4.13.10-1`
debian	bullseye	fixed	`4.13.10-1`
debian	forky	fixed	`4.13.10-1`
debian	sid	fixed	`4.13.10-1`
debian	trixie	fixed	`4.13.10-1`

References

💬 Discuss CVE-2018-1091 on VIR Community →

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.