CVE-2009-0789

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% 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-189

Description

OpenSSL before 0.9.8k on WIN64 and certain other platforms does not properly handle a malformed ASN.1 structure, which allows remote attackers to cause a denial of service (invalid memory access and application crash) by placing this structure in the public key of a certificate, as demonstrated by an RSA public key.

Affected products

OpenSSL: through 0.9.8j; 0.9.1c, 0.9.2b, 0.9.3, 0.9.3a, 0.9.4, 0.9.5 (+55)

References

http://lists.apple.com/archives/security-announce/2009/Sep/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.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

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