#VU92540 Permissions, privileges, and access controls in Linux kernel - CVE-2012-2123

Vulnerability identifier: #VU92540

Vulnerability risk: Low

CVSSv4.0: 5.9 [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:U/U:Clear]

CVE-ID: CVE-2012-2123

CWE-ID: CWE-264

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 execute arbitrary code.

The vulnerability exists due to security restrictions bypass error. A local user can execute arbitrary code.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://bugzilla.redhat.com/show_bug.cgi?id=806722
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3
https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445
https://www.openwall.com/lists/oss-security/2012/04/20/6
https://www.securityfocus.com/bid/53166
https://www.securitytracker.com/id?1027072
https://rhn.redhat.com/errata/RHSA-2012-0743.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/75043
https://www.debian.org/security/2012/dsa-2469
https://rhn.redhat.com/errata/RHSA-2012-0670.html
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445

---

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.