#VU95265 Buffer underwrite ('buffer underflow') in Linux kernel - CVE-2006-6054
Vulnerability identifier: #VU95265
Vulnerability risk: Low
CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-124
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The ext2 file system code in Linux kernel 2.6.x allows local users to cause a denial of service (crash) via an ext2 stream with malformed data structures that triggers an error in the ext2_check_page due to a length that is smaller than the minimum.
Mitigation
Install update from vendor's repository.
Vulnerable software versions
Linux kernel: All versions
External links
https://projects.info-pull.com/mokb/MOKB-12-11-2006.html
https://rhn.redhat.com/errata/RHSA-2007-0014.html
https://rhn.redhat.com/errata/RHSA-2007-0436.html
https://secunia.com/advisories/22837
https://secunia.com/advisories/23474
https://secunia.com/advisories/23997
https://secunia.com/advisories/24098
https://secunia.com/advisories/24206
https://secunia.com/advisories/25630
https://secunia.com/advisories/25691
https://secunia.com/advisories/26379
https://secunia.com/advisories/27528
https://secunia.com/advisories/29058
https://support.avaya.com/elmodocs2/security/ASA-2007-063.htm
https://support.avaya.com/elmodocs2/security/ASA-2007-404.htm
https://www.debian.org/security/2008/dsa-1503
https://www.debian.org/security/2008/dsa-1504
https://www.novell.com/linux/security/advisories/2006_79_kernel.html
https://www.redhat.com/support/errata/RHSA-2007-0672.html
https://www.redhat.com/support/errata/RHSA-2007-0673.html
https://www.securityfocus.com/archive/1/471457
https://www.ubuntu.com/usn/usn-416-1
https://www.vupen.com/english/advisories/2006/4487
https://exchange.xforce.ibmcloud.com/vulnerabilities/30201
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10006
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
