Description
The kssl_keytab_is_available function in ssl/kssl.c in OpenSSL before 0.9.8n, when Kerberos is enabled but Kerberos configuration files cannot be opened, does not check a certain return value, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via SSL cipher negotiation, as demonstrated by a chroot installation of Dovecot or stunnel without Kerberos configuration files inside the chroot.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.vupen.com/english/advisories/2010/0916 ↗
- http://secunia.com/advisories/42724 ↗
- http://secunia.com/advisories/39461 ↗
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9856 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=569774 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html ↗
- http://marc.info/?l=bugtraq&m=127557640302499&w=2 ↗
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12260 ↗
- http://www.openwall.com/lists/oss-security/2010/03/03/5 ↗
- http://www.mail-archive.com/dovecot%40dovecot.org/msg26224.html ↗
- https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000101.html ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=567711 ↗
- http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html ↗
- http://www.vupen.com/english/advisories/2010/0839 ↗
- http://cvs.openssl.org/chngview?cn=19374 ↗
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:076 ↗
- http://marc.info/?l=bugtraq&m=127128920008563&w=2 ↗
- https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000102.html ↗
- http://secunia.com/advisories/39932 ↗
- http://www.openssl.org/news/changelog.html ↗
- http://www.vupen.com/english/advisories/2010/0933 ↗
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html ↗
- https://kb.bluecoat.com/index?page=content&id=SA50 ↗
- http://www.securityfocus.com/archive/1/516397/100/0/threaded ↗
- http://secunia.com/advisories/43311 ↗
- http://www.vupen.com/english/advisories/2010/1216 ↗
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6718 ↗
- http://secunia.com/advisories/42733 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038587.html ↗
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory.asc ↗
- http://groups.google.com/group/mailing.openssl.users/browse_thread/thread/c3e1ab0034ca4b4c/66aa896c3a78b2f7 ↗