NULL pointer dereference in Linux kernel - CVE-2009-4308
Published: December 13, 2009 / Updated: October 10, 2018
Vulnerability identifier: #VU91014
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2009-4308
CWE-ID: CWE-476
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 perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ext4_decode_error() function in fs/ext4/super.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
How to mitigate CVE-2009-4308
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=78f1ddbb498283c2445c11b0dfa666424c301803
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://secunia.com/advisories/37658
- http://secunia.com/advisories/38017
- http://secunia.com/advisories/38276
- http://secunia.com/advisories/43315
- http://www.debian.org/security/2010/dsa-2005
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- http://www.redhat.com/support/errata/RHSA-2010-0147.html
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11103