Link Following Affecting policycoreutils-debuginfo package, versions <0:2.5-22.amzn2


Severity

Recommended
0.0
low
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.4% (34th percentile)

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  • Snyk IDSNYK-AMZN2-POLICYCOREUTILSDEBUGINFO-1665323
  • published27 Sept 2021
  • disclosed2 Mar 2018

Introduced: 2 Mar 2018

CVE-2018-1063  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 policycoreutils-debuginfo to version 0:2.5-22.amzn2 or higher.
This issue was patched in ALAS2-2018-1076.

NVD Description

Note: Versions mentioned in the description apply only to the upstream policycoreutils-debuginfo package and not the policycoreutils-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.