CVE-2021-44141

medium

Published 2022-05-10 · Modified 2022-06-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.5

Description

All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.

Predictions

Exploit likelihood

20%

Patch ETA

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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 with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
arch		fixed	`4.15.5-1`
sles		affected
rocky	8	fixed
debian	bookworm	fixed	`2:4.16.0+dfsg-2`
debian	bullseye	affected
debian	forky	fixed	`2:4.16.0+dfsg-2`
debian	sid	fixed	`2:4.16.0+dfsg-2`
debian	trixie	fixed	`2:4.16.0+dfsg-2`

References

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

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