CVE-2007-3642 json
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 be…
published 2007-07-10 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-3626
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.9%
- EPSS 3.9% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- secunia.com/advisories/25955 advisory
Exploit prediction
3.87% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-189 Numeric Errors
- Technology feeds
References
-
secunia.com
/advisories/25955
third-party-advisory, patch, vendor-advisory
-
ubuntu.com
/usn/usn-510-1
vendor-advisory
-
debian.org
/security/2007/dsa-1356
vendor-advisory
-
mandriva.com
/security/advisories?name=MDKSA-2007:195
vendor-advisory
-
secunia.com
/advisories/27212
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2007/2466
vdb-entry, vendor-advisory
-
secunia.com
/advisories/26450
third-party-advisory, vendor-advisory
- kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.21.6
-
securityfocus.com
/bid/24818
vdb-entry
- git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=25845b5155b55cd77e42655ec24161ba3feffa47
- kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.22
- kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.20.15
-
osvdb.org
/37117
vdb-entry
Sources
- CVE List CVE-2007-3642
- NVD CVE-2007-3642
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