Buffer overflow in the isdn_net_setcfg function in isdn_net.c in Linux kernel 2.6.23 allows local users to have an unknown impact via a crafted argument to the isdn_ioctl function.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9846
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6514
http://www.vupen.com/english/advisories/2007/4046
http://www.ubuntu.com/usn/usn-578-1
http://www.ubuntu.com/usn/usn-574-1
http://www.securityfocus.com/bid/26605
http://www.redhat.com/support/errata/RHSA-2008-0973.html
http://www.redhat.com/support/errata/RHSA-2008-0787.html
http://www.redhat.com/support/errata/RHSA-2008-0154.html
http://www.mandriva.com/security/advisories?name=MDVSA-2008:112
http://www.mandriva.com/security/advisories?name=MDVSA-2008:008
http://www.debian.org/security/2008/dsa-1504
http://www.debian.org/security/2008/dsa-1503
http://www.debian.org/security/2007/dsa-1436
http://secunia.com/advisories/33280
http://secunia.com/advisories/33201
http://secunia.com/advisories/29236
http://secunia.com/advisories/29058
http://secunia.com/advisories/28971
http://secunia.com/advisories/28806
http://secunia.com/advisories/28748
http://secunia.com/advisories/28706
http://secunia.com/advisories/28141
http://secunia.com/advisories/27912
http://secunia.com/advisories/27842
http://rhn.redhat.com/errata/RHSA-2008-0055.html
http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html