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.
Metrics
CVSS 2.0 6.8/10
AV:N/AC:M/Au:N/C:P/I:P/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=311191Patch
- 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=311191Patch
- 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
Timeline
- Published
- Mar 31, 2010
- Last modified
- Jun 16, 2026
- NVD status
- Modified