CVE-2021-3181
First published: Sun Jan 17 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/mutt | 1.10.1-2.1+deb10u6 1.10.1-2.1+deb10u7 2.0.5-4.1+deb11u3 2.2.12-0.1~deb12u1 2.2.9-1+deb12u1 2.2.12-0.1 | |
| Mutt Mutt | <=2.0.4 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| debian/mutt | <=1.10.1-2.1+deb10u4<=1.10.1-1<=2.0.2-1 | 2.0.5-1 1.10.1-2.1+deb10u5 |
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Reference Links
- https://gitlab.com/muttmua/mutt/-/issues/323
- https://gitlab.com/muttmua/mutt/-/commit/4a2becbdb4422aaffe3ce314991b9d670b7adf17
- https://security-tracker.debian.org/tracker/CVE-2021-3181
- http://www.openwall.com/lists/oss-security/2021/01/19/10
- http://www.openwall.com/lists/oss-security/2021/01/27/3
- https://gitlab.com/muttmua/mutt/-/commit/939b02b33ae29bc0d642570c1dcfd4b339037d19
- https://gitlab.com/muttmua/mutt/-/commit/d4305208955c5cdd9fe96dfa61e7c1e14e176a14
- https://lists.debian.org/debian-lts-announce/2021/01/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DXGWXFO77HBCD3VYEIYHHYU33LYWWWNQ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P2OMLQKAOHPYQA4GI7ZUO6UKCPUHLYO7/
- https://security.gentoo.org/glsa/202101-25
- https://www.debian.org/security/2021/dsa-4838
- https://www.openwall.com/lists/oss-security/2021/01/17/2
- https://gitlab.com/muttmua/mutt/-/commit/c059e20ea4c7cb3ee9ffd3500ffe313ae84b2545
- https://gitlab.com/muttmua/mutt/-/commits/stable/
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=980326
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2OMLQKAOHPYQA4GI7ZUO6UKCPUHLYO7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXGWXFO77HBCD3VYEIYHHYU33LYWWWNQ/
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID is CVE-2021-3181.
What is the severity of CVE-2021-3181?
The severity of CVE-2021-3181 is high.
How does CVE-2021-3181 impact Mutt?
CVE-2021-3181 allows remote attackers to cause a denial of service (mailbox unavailability) in Mutt.
Which versions of Mutt are affected by CVE-2021-3181?
Mutt versions up to and including 2.0.4 are affected by CVE-2021-3181.
How can I fix CVE-2021-3181?
To fix CVE-2021-3181, update Mutt to version 2.0.5-1 or apply the recommended patches from the vendor.
- collector/security-tracker-debian
- collector/nvd-index
- collector/debian-bugs
- alias/CVE-2021-3181
- agent/type
- agent/tags
- agent/event
- agent/weakness
- agent/severity
- agent/references
- agent/author
- agent/description
- agent/remedy
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- package-manager/debian
- vendor/mutt
- canonical/mutt mutt
- version/mutt mutt/2.0.4
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/32
- version/fedoraproject fedora/33