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CVE-2021-3181 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://gitlab.com/muttmua/mutt/-/commit/4a2becbdb4422aaffe3ce314991b9d670b7adf17	CVE	PatchThird Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/939b02b33ae29bc0d642570c1dcfd4b339037d19	CVE	PatchThird Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/d4305208955c5cdd9fe96dfa61e7c1e14e176a14	CVE	PatchThird Party Advisory
https://gitlab.com/muttmua/mutt/-/issues/323	CVE	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00017.html	CVE	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXGWXFO77HBCD3VYEIYHHYU33LYWWWNQ/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2OMLQKAOHPYQA4GI7ZUO6UKCPUHLYO7/	CVE
https://security.gentoo.org/glsa/202101-25	CVE	Third Party Advisory
https://www.debian.org/security/2021/dsa-4838	CVE	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/19/10	CVE	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/27/3	CVE	Mailing ListThird Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/4a2becbdb4422aaffe3ce314991b9d670b7adf17	[email protected]	PatchThird Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/939b02b33ae29bc0d642570c1dcfd4b339037d19	[email protected]	PatchThird Party Advisory
https://gitlab.com/muttmua/mutt/-/commit/d4305208955c5cdd9fe96dfa61e7c1e14e176a14	[email protected]	PatchThird Party Advisory
https://gitlab.com/muttmua/mutt/-/issues/323	[email protected]	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00017.html	[email protected]	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXGWXFO77HBCD3VYEIYHHYU33LYWWWNQ/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2OMLQKAOHPYQA4GI7ZUO6UKCPUHLYO7/	[email protected]
https://security.gentoo.org/glsa/202101-25	[email protected]	Third Party Advisory
https://www.debian.org/security/2021/dsa-4838	[email protected]	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/19/10	[email protected]	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/27/3	[email protected]	Mailing ListThird Party Advisory

see all 22 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-401	Missing Release of Memory after Effective Lifetime	[email protected]

Affected Products

Product	Versions
mutt mutt	<= 2.0.4
CPE cpe:2.3:a:mutt:mutt:::::::: Remediation No remediation found in references.
debian debian linux	9.0 10.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.
fedoraproject fedora	32 33
CPE cpe:2.3:o:fedoraproject:fedora:32:::::::* cpe:2.3:o:fedoraproject:fedora:33:::::::* Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Jul 12, 2022	CWE Remap	[email protected]
Feb 17, 2021	Modified Analysis	[email protected]
Feb 10, 2021	CVE Modified	[email protected]
Jan 27, 2021	Initial Analysis	[email protected]
Jan 27, 2021	CVE Modified	[email protected]
Jan 26, 2021	CVE Modified	[email protected]
Jan 19, 2021	CVE Modified	[email protected]

CVE-2021-3181 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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