Security restrictions bypass in Linux kernel - CVE-2014-8159

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Main Vulnerability Database Vulnerabilities #VU92803

Security restrictions bypass in Linux kernel - CVE-2014-8159

Published: June 20, 2024


Vulnerability identifier: #VU92803
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2014-8159
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to execute arbitrary code.

The InfiniBand (IB) implementation in the Linux kernel package before 2.6.32-504.12.2 on Red Hat Enterprise Linux (RHEL) 6 does not properly restrict use of User Verbs for registration of memory regions, which allows local users to access arbitrary physical memory locations, and consequently cause a denial of service (system crash) or gain privileges, by leveraging permissions on a uverbs device under /dev/infiniband/.


Affected software

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-lts-trusty (Ubuntu package)
linux-lts-utopic (Ubuntu package)

How to mitigate CVE-2014-8159

Install update from vendor's repository.

linux (Ubuntu package) - addressed in versions 2.6.32-73.141, 3.2.0-77.114, 3.13.0-46.79, 3.16.0-31.43
linux-lts-trusty (Ubuntu package) - update to 3.13.0-46.79~precise1
linux-lts-utopic (Ubuntu package) - update to 3.16.0-31.43~14.04.1

External References

Related Security Bulletins