Denial of service in Linux kernel JBD

1) Reachable assertion

EUVDB-ID: #VU90974

Risk: Low

CVSSv4.0: 4.3 [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/E:U/U:Clear]

CVE-ID: CVE-2011-4132

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion within the cleanup_journal_tail() function in the Journaling Block Device (JBD) functionality. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/50663
https://bugzilla.redhat.com/show_bug.cgi?id=753341
https://xorl.wordpress.com/2011/12/08/cve-2011-4132-linux-kernel-jbdjbd2-local-dos/
https://securitytracker.com/id?1026325
https://www.openwall.com/lists/oss-security/2011/11/13/4
https://www.openwall.com/lists/oss-security/2011/11/11/6
https://secunia.com/advisories/48898
https://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
https://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=8762202dd0d6e46854f786bdb6fb3780a1625efe

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.