Race Condition Affecting exim/exim package, versions [,4.72)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-UNMANAGED-EXIMEXIM-2364596
  • published26 Jan 2022
  • disclosed7 Jun 2010
  • creditUnknown

Introduced: 7 Jun 2010

CVE-2010-2023  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade exim/exim to version 4.72 or higher.

Overview

Affected versions of this package are vulnerable to Race Condition transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.

References

CVSS Scores

version 3.1