Input validation error in Linux kernel

Published: 2020-02-20 | Updated: 2020-08-08

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2011-2498
CWE-ID	CWE-20
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Linux kernel Operating systems & Components / Operating system
Vendor	Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU34819

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2011-2498

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The Linux kernel from v2.3.36 before v2.6.39 allows local unprivileged users to cause a denial of service (memory consumption) by triggering creation of PTE pages.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.3.36 - 2.6.38.8

CPE2.3

External links

http://marc.info/?l=oss-security&m=130923704824984&w=2
http://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-2498.html
http://security-tracker.debian.org/tracker/CVE-2011-2498
http://usn.ubuntu.com/1167-1/
http://www.rapid7.com/db/vulnerabilities/ubuntu-USN-1383-1

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.