Link Following Affecting rpm package, versions <4.18.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.08% (25th percentile)

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  • Snyk IDSNYK-ALPINE317-RPM-3144010
  • published23 Nov 2022
  • disclosed25 Aug 2022

Introduced: 25 Aug 2022

CVE-2021-35938  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Alpine:3.17 rpm to version 4.18.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rpm package and not the rpm package as distributed by Alpine. See How to fix? for Alpine:3.17 relevant fixed versions and status.

A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS Base Scores

version 3.1