CVE-2007-3642

Linux Kernel < 2.6.20.15, 2.6.21.x < 2.6.21.6, < 2.6.22 - Denial of Service via H.323 ASN.1 Choice Field Index

Title source: llm
STIX 2.1

Description

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.

References (13)

Core 13
Core References
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/27212
Patch, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/25955
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-510-1
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2007/dsa-1356
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/24818
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/2466
Various Sources x_refsource_confirm
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/37117
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26450
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDKSA-2007:195

Scores

EPSS 0.0387
EPSS Percentile 89.2%

Details

CWE
CWE-189
Status published
Products (13)
linux/linux_kernel 2.6.0
linux/linux_kernel 2.6.1 (4 CPE variants)
linux/linux_kernel 2.6.2 (4 CPE variants)
linux/linux_kernel 2.6.3 (5 CPE variants)
linux/linux_kernel 2.6.4 (4 CPE variants)
linux/linux_kernel 2.6.5 (4 CPE variants)
linux/linux_kernel 2.6.6 (4 CPE variants)
linux/linux_kernel 2.6.7 (4 CPE variants)
linux/linux_kernel 2.6.8 (5 CPE variants)
linux/linux_kernel 2.6.8.1
... and 3 more
Published Jul 10, 2007
Tracked Since Feb 18, 2026