CVE-2007-1497

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2007-03-16 · updated 2026-06-16

Description

nf_conntrack in netfilter in the Linux kernel before 2.6.20.3 does not set nfctinfo during reassembly of fragmented packets, which leaves the default value as IP_CT_ESTABLISHED and might allow remote attackers to bypass certain rulesets using IPv6 fragments.

Affected products

Linux kernel: through 2.6.20.2

References

http://secunia.com/advisories/24492
http://secunia.com/advisories/25228
http://secunia.com/advisories/25288
http://secunia.com/advisories/25392
http://secunia.com/advisories/25961
http://secunia.com/advisories/26620
http://www.debian.org/security/2007/dsa-1289
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.3
http://www.mandriva.com/security/advisories?name=MDKSA-2007:171
http://www.mandriva.com/security/advisories?name=MDKSA-2007:196
http://www.novell.com/linux/security/advisories/2007_43_kernel.html
http://www.osvdb.org/33028

Get alerted when CVE-2007-1497 or the next vulnerability affects your stack