net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in...

Vulnerability Description

net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel before 2.6.26.4 does not verify that the SCTP-AUTH extension is enabled before proceeding with SCTP-AUTH API functions, which allows attackers to cause a denial of service (NULL pointer dereference and panic) via vectors that result in calls to (1) sctp_setsockopt_auth_chunk, (2) sctp_setsockopt_hmac_ident, (3) sctp_setsockopt_auth_key, (4) sctp_setsockopt_active_key, (5) sctp_setsockopt_del_key, (6) sctp_getsockopt_maxburst, (7) sctp_getsockopt_active_key, (8) sctp_getsockopt_peer_auth_chunks, or (9) sctp_getsockopt_local_auth_chunks.

References

• http://www.trapkit.de/advisories/TKADV2008-007.txt
• http://secunia.com/advisories/32190
• http://secunia.com/advisories/32393
• http://www.debian.org/security/2008/dsa-1636
• http://www.securityfocus.com/bid/31121
• http://www.openwall.com/lists/oss-security/2008/08/26/8
• http://www.openwall.com/lists/oss-security/2008/08/26/6
• http://secunia.com/advisories/31881
• http://www.ubuntu.com/usn/usn-659-1
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45189
• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00010.html
• http://www.redhat.com/support/errata/RHSA-2008-0857.html
• http://www.openwall.com/lists/oss-security/2008/08/25/1
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.26.4
• http://lkml.org/lkml/2008/8/23/49
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5e739d1752aca4e8f3e794d431503bfca3162df4
• http://www.securitytracker.com/id?1020854
• http://securityreason.com/securityalert/4210
• http://www.securityfocus.com/archive/1/496256/100/0/threaded
• http://marc.info/?l=linux-netdev&m=121928747903176&w=2
• http://www.openwall.com/lists/oss-security/2008/09/26/6