Use After Free Affecting kernel-bootwrapper package, versions <0:3.10.0-327.4.5.el7


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.04% (1st percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELBOOTWRAPPER-2061986
  • 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 Centos:7 kernel-bootwrapper to version 0:3.10.0-327.4.5.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by Centos. See How to fix? for Centos: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 Scores

version 3.1