vulnerability
Red Hat: CVE-2021-3181: CVE-2021-3181 mutt: Memory leak when parsing rfc822 group addresses (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Jan 19, 2021 | Nov 10, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Jan 19, 2021
Added
Nov 10, 2021
Modified
Aug 11, 2025
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.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-muttredhat-upgrade-mutt-debuginforedhat-upgrade-mutt-debugsource
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