CVE-2018-1095

unknown

Published — · Modified —

CVSS v3

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VIR risk

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Description

The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.

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	`4.16.5-1`
debian	bullseye	fixed	`4.16.5-1`
debian	forky	fixed	`4.16.5-1`
debian	sid	fixed	`4.16.5-1`
debian	trixie	fixed	`4.16.5-1`

References

💬 Discuss CVE-2018-1095 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.