CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
AI Score
Confidence
Low
EPSS
Percentile
94.0%
The decode_choice function in net/netfilter/nf_conntrack_h323_asn1.c in the Linux kernel before 2.6.20.15, 2.6.21.x before 2.6.21.6, and before 2.6.22 allows remote attackers to cause a denial of service (crash) via an encoded, out-of-range index value for a choice field, which triggers a NULL pointer dereference.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=25845b5155b55cd77e42655ec24161ba3feffa47
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.15
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.6
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
osvdb.org/37117
secunia.com/advisories/25955
secunia.com/advisories/26450
secunia.com/advisories/27212
www.debian.org/security/2007/dsa-1356
www.mandriva.com/security/advisories?name=MDKSA-2007:195
www.securityfocus.com/bid/24818
www.ubuntu.com/usn/usn-510-1
www.vupen.com/english/advisories/2007/2466