The NSS plugin in libpurple in Pidgin 2.4.3 does not verify SSL certificates, which makes it easier for remote attackers to trick a user into accepting an invalid server certificate for a spoofed service.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pidgin | Pidgin | 2.4.3 (including) | 2.4.3 (including) |
| Red Hat Enterprise Linux 4 | RedHat | pidgin-0:2.5.2-6.el4 | * |
| Red Hat Enterprise Linux 5 | RedHat | pidgin-0:2.5.2-6.el5 | * |
| Gaim | Ubuntu | feisty | * |
| Gaim | Ubuntu | upstream | * |
| Pidgin | Ubuntu | gutsy | * |
| Pidgin | Ubuntu | hardy | * |
| Pidgin | Ubuntu | upstream | * |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=492434
- http://developer.pidgin.im/attachment/ticket/6500/nss-cert-verify.patch
- http://developer.pidgin.im/attachment/ticket/6500/nss_add_rev.patch
- http://developer.pidgin.im/ticket/6500
- http://secunia.com/advisories/31390
- http://secunia.com/advisories/32859
- http://secunia.com/advisories/33102
- http://support.avaya.com/elmodocs2/security/ASA-2008-493.htm
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:025
- http://www.redhat.com/support/errata/RHSA-2008-1023.html
- http://www.securityfocus.com/bid/30553
- http://www.ubuntu.com/usn/USN-675-1
- http://www.vupen.com/english/advisories/2008/2318
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44220
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10979
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18327
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=492434
- http://developer.pidgin.im/attachment/ticket/6500/nss-cert-verify.patch
- http://developer.pidgin.im/attachment/ticket/6500/nss_add_rev.patch
- http://developer.pidgin.im/ticket/6500
- http://secunia.com/advisories/31390
- http://secunia.com/advisories/32859
- http://secunia.com/advisories/33102
- http://support.avaya.com/elmodocs2/security/ASA-2008-493.htm
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:025
- http://www.redhat.com/support/errata/RHSA-2008-1023.html
- http://www.securityfocus.com/bid/30553
- http://www.ubuntu.com/usn/USN-675-1
- http://www.vupen.com/english/advisories/2008/2318
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44220
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10979
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18327