CVE-2012-5662

medium

Published 2014-05-27 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.8

Description

x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

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

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`3.3.14ga11-1`
sid	Fixed	`3.3.14ga11-1`
forky	Fixed	`3.3.14ga11-1`
bullseye	Fixed	`3.3.14ga11-1`
bookworm	Fixed	`3.3.14ga11-1`

Application impact

Vendor	Product	Versions
paul_mattes	x3270	`{"endIncluding":"3.3.12"}`
paul_mattes	x3270	`3.3.5`
paul_mattes	x3270	`3.3.6`
paul_mattes	x3270	`3.3.7`
paul_mattes	x3270	`3.3.8`
paul_mattes	x3270	`3.3.9`
paul_mattes	x3270	`3.3.10`
paul_mattes	x3270	`3.3.11`
paul_mattes	x3270	`3.3.12`

References

CWEs

CWE-310

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

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