The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Io-socket-ssl | Io-socket-ssl | 1.14 (including) | 1.14 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.15 (including) | 1.15 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.16 (including) | 1.16 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.16_1 (including) | 1.16_1 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.16_2 (including) | 1.16_2 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.16_3 (including) | 1.16_3 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.17 (including) | 1.17 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.18 (including) | 1.18 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.19 (including) | 1.19 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.20 (including) | 1.20 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.21 (including) | 1.21 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.22 (including) | 1.22 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.23 (including) | 1.23 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.24 (including) | 1.24 (including) |
| Io-socket-ssl | Io-socket-ssl | 1.25 (including) | 1.25 (including) |
| Libio-socket-ssl-perl | Ubuntu | jaunty | * |
| Libio-socket-ssl-perl | Ubuntu | upstream | * |
References
- http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.30/Changes
- http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
- http://secunia.com/advisories/42893
- http://www.gentoo.org/security/en/glsa/glsa-201101-06.xml
- http://www.openwall.com/lists/oss-security/2009/08/28/1
- http://www.openwall.com/lists/oss-security/2009/08/29/1
- http://www.openwall.com/lists/oss-security/2009/08/31/4
- http://www.vupen.com/english/advisories/2011/0118
- http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.30/Changes
- http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
- http://secunia.com/advisories/42893
- http://www.gentoo.org/security/en/glsa/glsa-201101-06.xml
- http://www.openwall.com/lists/oss-security/2009/08/28/1
- http://www.openwall.com/lists/oss-security/2009/08/29/1
- http://www.openwall.com/lists/oss-security/2009/08/31/4
- http://www.vupen.com/english/advisories/2011/0118