CVE-2021-3181

MEDIUM Year: 2021
CVSS v3 Score
6.5
Medium
CVSS v2 Score
4.3
Medium
Weakness Type
CWE-401
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Vulnerability Description

rfc822.c in Mutt through 2.0.4 allows remote attackers to cause a denial of service (mailbox unavailability) by sending email messages with sequences of semicolon characters in RFC822 address fields (aka terminators of empty groups). A small email message from the attacker can cause large memory consumption, and the victim may then be unable to see email messages from other persons.

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