Use After Free Affecting kernel-rt-debug package, versions <0:3.10.0-327.4.5.rt56.206.el7_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
58.26% (99th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-KERNELRTDEBUG-4598786
  • published26 Jul 2021
  • disclosed19 Jan 2016

Introduced: 19 Jan 2016

CVE-2016-0728  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:7 kernel-rt-debug to version 0:3.10.0-327.4.5.rt56.206.el7_2 or higher.
This issue was patched in RHSA-2016:0065.

NVD Description

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

The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.

References

CVSS Base Scores

version 3.1