#VU44354 Stack-based buffer overflow in Linux kernel - CVE-2011-4330

Vulnerability identifier: #VU44354

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-4330

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the hfs_mac2asc function in fs/hfs/trans.c when processing an HFS image with a crafted len field. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Linux kernel: 2.6

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External links
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bc5b8a9003132ae44559edd63a1623
https://www.openwall.com/lists/oss-security/2011/11/21/14
https://www.openwall.com/lists/oss-security/2011/11/21/5
https://www.securityfocus.com/bid/50750
https://bugzilla.redhat.com/show_bug.cgi?id=755431
https://lkml.org/lkml/2011/11/9/303

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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.