Out-of-Bounds Affecting mutt package, versions <1.5.23-2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
9.69% (95th percentile)

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  • Snyk IDSNYK-ECHOLATEST-MUTT-20675194
  • published9 Oct 2026
  • disclosed2 Dec 2014

Introduced: 2 Dec 2014

CVE-2014-9116  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Echo:latest mutt to version 1.5.23-2 or higher.

NVD Description

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

The write_one_header function in mutt 1.5.23 does not properly handle newline characters at the beginning of a header, which allows remote attackers to cause a denial of service (crash) via a header with an empty body, which triggers a heap-based buffer overflow in the mutt_substrdup function.

CVSS Base Scores

version 3.1