SB2019122635 - Resource exhaustion in Linux kernel

Description

This security bulletin contains information about 1 vulnerability.

1) Resource exhaustion (CVE-ID: CVE-2011-1474)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

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

A locally locally exploitable DOS vulnerability was found in pax-linux versions 2.6.32.33-test79.patch, 2.6.38-test3.patch, and 2.6.37.4-test14.patch. A bad bounds check in arch_get_unmapped_area_topdown triggered by programs doing an mmap after a MAP_GROWSDOWN mmap will create an infinite loop condition without releasing the VM semaphore eventually leading to a system crash.

Remediation

Install update from vendor's website.

References

• http://seclists.org/oss-sec/2011/q1/579
• https://security-tracker.debian.org/tracker/CVE-2011-1474