Improper input validation in Linux kernel - CVE-2009-0746
Published: February 27, 2009 / Updated: June 20, 2024
Vulnerability identifier: #VU92676
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-0746
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation error within the make_indexed_dir() function in fs/ext4/namei.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2009-0746
Install update from vendor's repository.
Links to Public Exploits and PoC-codes
External References
- http://bugzilla.kernel.org/show_bug.cgi?id=12430
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e6b8bc09ba2075cd91fbffefcd2778b1a00bd76f
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7
- http://osvdb.org/52202
- http://rhn.redhat.com/errata/RHSA-2009-1243.html
- http://secunia.com/advisories/34394
- http://secunia.com/advisories/36562
- http://secunia.com/advisories/37471
- http://www.debian.org/security/2009/dsa-1749
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.ubuntu.com/usn/usn-751-1
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/0509
- http://www.vupen.com/english/advisories/2009/3316
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48872
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10342
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8039