CVE-2009-0591

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-03-27 · updated 2026-06-16
Weakness: CWE-287

Description

The CMS_verify function in OpenSSL 0.9.8h through 0.9.8j, when CMS is enabled, does not properly handle errors associated with malformed signed attributes, which allows remote attackers to repudiate a signature that originally appeared to be valid but was actually invalid.

Affected products

OpenSSL: 0.9.8h, 0.9.8i, 0.9.8j

References

http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html
http://marc.info/?l=bugtraq&m=124464882609472&w=2
http://marc.info/?l=bugtraq&m=127678688104458&w=2
http://secunia.com/advisories/34411
http://secunia.com/advisories/34460
http://secunia.com/advisories/34666
http://secunia.com/advisories/35065
http://secunia.com/advisories/35380
http://secunia.com/advisories/35729
http://secunia.com/advisories/36701

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