Input validation error in Linux kernel



| Updated: 2020-08-11
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2012-3375
CWE-ID CWE-20
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
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: #VU43440

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2012-3375

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

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 (file-descriptor consumption and system crash) via a crafted application that attempts to create a circular epoll dependency.

Mitigation

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

Vulnerable software versions

Linux kernel: 3.0.1 - 3.2.22

CPE2.3 External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=13d518074a952d33d47c428419693f63389547e9
https://secunia.com/advisories/51164
https://ubuntu.com/usn/usn-1529-1
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24
https://www.openwall.com/lists/oss-security/2012/07/04/2
https://www.securitytracker.com/id?1027237
https://bugzilla.redhat.com/show_bug.cgi?id=837502
https://downloads.avaya.com/css/P8/documents/100165733
https://github.com/torvalds/linux/commit/13d518074a952d33d47c428419693f63389547e9


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.



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