<p>There is no fixed version for <code>Centos:7</code> <code>kernel-rt-kvm</code>.</p>

NULL Pointer Dereference Affecting kernel-rt-kvm package, versions *

Threat Intelligence

0.04% (11^th percentile)

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Snyk ID SNYK-CENTOS7-KERNELRTKVM-1951083
published 26 Jul 2021
disclosed 10 Dec 2015

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Introduced: 10 Dec 2015

CVE-2015-7550 Open this link in a new tab CWE-476 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 kernel-rt-kvm.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High