Privilege Escalation Affecting exim/exim package, versions [,4.94.2)


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-EXIMEXIM-2364593
  • published26 Jan 2022
  • disclosed6 May 2021
  • creditUnknown

Introduced: 6 May 2021

CVE-2021-27216  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade exim/exim to version 4.94.2 or higher.

Overview

Affected versions of this package are vulnerable to Privilege Escalation. Exim 4 before 4.94.2 has Execution with Unnecessary Privileges. By leveraging a delete_pid_file race condition, a local user can delete arbitrary files as root. This involves the -oP and -oPX options.

References

CVSS Scores

version 3.1