CVE-2010-1194

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-03-31 · updated 2026-06-16
Weakness: CWE-310

Description

The match_component function in smtp-tls.c in libESMTP 1.0.3.r1, and possibly other versions including 1.0.4, treats two strings as equal if one is a substring of the other, which allows remote attackers to spoof trusted certificates via a crafted subjectAltName.

Affected products

Stafford.Uklinux Libesmtp: 0.1, 0.1-a, 0.2, 0.3, 0.4, 0.5 (+26)

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=311191
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
http://www.openwall.com/lists/oss-security/2010/03/03/6
http://www.openwall.com/lists/oss-security/2010/03/09/3
http://www.vupen.com/english/advisories/2010/1107
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=311191
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
http://www.openwall.com/lists/oss-security/2010/03/03/6
http://www.openwall.com/lists/oss-security/2010/03/09/3
http://www.vupen.com/english/advisories/2010/1107

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