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F5 BIG-IP - Linux kernel vulnerability CVE-2014-9419

Information

Severity

Severity

Low

Family

Family

F5 Local Security Checks

CVSSv2 Base

CVSSv2 Base

2.1

CVSSv2 Vector

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

1 year ago

Summary

The remote host is missing a security patch.

Insight

Insight

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address. (CVE-2014-9419)

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)