CVE-2007-3642
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 3.87% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=25845b5155b55cd77e42655ec24161ba3feffa47
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.15
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.6
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
- http://osvdb.org/37117
- http://secunia.com/advisories/25955Patch, Vendor Advisory
- http://secunia.com/advisories/26450Vendor Advisory
- http://secunia.com/advisories/27212Vendor Advisory
- http://www.debian.org/security/2007/dsa-1356
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:195
- http://www.securityfocus.com/bid/24818
- http://www.ubuntu.com/usn/usn-510-1
- http://www.vupen.com/english/advisories/2007/2466Vendor Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=25845b5155b55cd77e42655ec24161ba3feffa47
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.15
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.6
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
- http://osvdb.org/37117
- http://secunia.com/advisories/25955Patch, Vendor Advisory
- http://secunia.com/advisories/26450Vendor Advisory
- http://secunia.com/advisories/27212Vendor Advisory
- http://www.debian.org/security/2007/dsa-1356
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:195
- http://www.securityfocus.com/bid/24818
- http://www.ubuntu.com/usn/usn-510-1
- http://www.vupen.com/english/advisories/2007/2466Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.