Input validation error in Linux kernel



| Updated: 2020-08-11
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2012-3511
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU43439

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-3511

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (use-after-free and system crash) via vectors involving a (1) munmap or (2) close system call.

Mitigation

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

Vulnerable software versions

Linux kernel: 3.0 - 3.4.3

CPE2.3 External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb
https://secunia.com/advisories/50633
https://secunia.com/advisories/50732
https://secunia.com/advisories/55055
https://ubuntu.com/usn/usn-1529-1
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
https://www.openwall.com/lists/oss-security/2012/08/20/13
https://www.securityfocus.com/bid/55151
https://www.ubuntu.com/usn/USN-1567-1
https://www.ubuntu.com/usn/USN-1572-1
https://www.ubuntu.com/usn/USN-1577-1
https://bugzilla.redhat.com/show_bug.cgi?id=849734
https://github.com/torvalds/linux/commit/9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb


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.



###SIDEBAR###