Improper input validation in Linux kernel - CVE-2007-1497
Published: March 17, 2007 / Updated: October 11, 2017
Vulnerability identifier: #VU94801
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2007-1497
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
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.
How to mitigate CVE-2007-1497
Install update from vendor's repository.
Sources
- 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
- http://www.redhat.com/support/errata/RHSA-2007-0347.html
- http://www.securityfocus.com/bid/23976
- http://www.ubuntu.com/usn/usn-464-1
- http://www.vupen.com/english/advisories/2007/0944
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10457