CVE-2021-3181

mutt: Memory leak when parsing rfc822 group addresses

Published Jan 19, 2021 CVSS 3.1 · 6.5 Medium EPSS 2.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2529-1 mutt security update
Debian DSA Debian DSA DSA-4838-1 mutt security update
EUVD EUVD EUVD-2021-26524 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.
Ubuntu USN Ubuntu USN USN-4703-1 Mutt vulnerability
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 3, 2024, 4:45 PM
Reserved
Jan 19, 2021, 12:00 AM
Status
Modified
Published
Jan 19, 2021, 3:15 PM
Modified
Jun 17, 2026, 4:04 AM
Severity
Moderate
Public date
Jan 19, 2021, 12:00 AM