#VU92662 Memory corruption in Linux kernel - CVE-2009-1897

Vulnerability identifier: #VU92662

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2009-1897

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to memory corruption error. A local user can execute arbitrary code.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://lkml.org/lkml/2009/7/6/19
https://grsecurity.net/~spender/cheddar_bay.tgz
https://bugzilla.redhat.com/show_bug.cgi?id=512284
https://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html
https://isc.sans.org/diary.html?storyid=6820
https://article.gmane.org/gmane.linux.network/124939
https://secunia.com/advisories/35839
https://www.openwall.com/lists/oss-security/2009/07/17/1
https://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
https://www.vupen.com/english/advisories/2009/1925
https://exchange.xforce.ibmcloud.com/vulnerabilities/51803
https://www.redhat.com/en/blog/security-flaws-caused-compiler-optimizations
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13

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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. However, proof of concept for this vulnerability is available.