Memory Leak Affecting opensmtpd/opensmtpd package, versions [,6.8.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.79% (87th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSMTPDOPENSMTPD-2365682
  • published26 Jan 2022
  • disclosed24 Dec 2020
  • creditUnknown

Introduced: 24 Dec 2020

CVE-2020-35679  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade opensmtpd/opensmtpd to version 6.8.0 or higher.

Overview

Affected versions of this package are vulnerable to Memory Leak smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups.

References

CVSS Base Scores

version 3.1