CVE-2021-38155

unknown

Published 2022-05-24 · Modified 2024-05-19

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CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

OpenStack Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.

Predictions

Exploit likelihood

30%

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

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2:19.0.0-3`
sid	Fixed	`2:19.0.0-3`
forky	Fixed	`2:19.0.0-3`
bullseye	Fixed	`2:18.0.0-3+deb11u1`
bookworm	Fixed	`2:19.0.0-3`

Package impact

Ecosystem	Package	Vulnerable	Fixed
PyPI	keystone	`>=18.0,<18.0.1`	`18.0.1`
PyPI	keystone	`>=10.0,<16.0.2`	`16.0.2`
PyPI	keystone	`>=19.0,<19.0.1`	`19.0.1`
PyPI	keystone	`>=17.0,<17.0.1`	`17.0.1`

References

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

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