Description
An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap_quote_string in imap/util.c does not leave room for quote characters, leading to a stack-based buffer overflow.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mutt | 1.10.1-1 | — |
| Debian 14 | neomutt | 20180716+dfsg.1-1 | — |
| Debian 13 | mutt | 1.10.1-1 | — |
| Debian 13 | neomutt | 20180716+dfsg.1-1 | — |
| Debian 12 | mutt | 1.10.1-1 | — |
| Debian 12 | neomutt | 20180716+dfsg.1-1 | — |
| Debian 9 | mutt | 1.7.2-1+deb9u1 | DSA-4277-1 |
| Debian 8 | mutt | 1.5.23-3+deb8u1 | DLA-1455-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mutt | 1.9.4-3ubuntu0.1 | USN-3719-1 |
| Ubuntu 16.04 LTS | mutt | 1.5.24-1ubuntu0.2 | USN-3719-3, USN-3719-1 |
| Ubuntu 14.04 LTS | mutt | 1.5.21-6.4ubuntu2.2 | USN-3719-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | neomutt | 20231103+dfsg1-1ubuntu0.1~esm1 | USN-7204-1 |
| Ubuntu Pro 22.04 LTS | neomutt | 20211029+dfsg1-1ubuntu0.1~esm1 | USN-7204-1 |
| Ubuntu Pro 20.04 LTS | neomutt | 20191207+dfsg.1-1.1ubuntu0.1~esm1 | USN-7204-1 |
| Ubuntu Pro 18.04 LTS | neomutt | 20171215+dfsg.1-1ubuntu0.1~esm1 | USN-7204-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | mutt | 1.10.1-3.3.4 | SUSE-SU-2018:2085-1 |
| SLES 12 SP3 | mutt | 1.10.1-55.3.1 | SUSE-SU-2019:1196-1, SUSE-SU-2018:2084-1 |
| SLES 11 SP4 | mutt | 1.5.17-42.43.1 | SUSE-SU-2018:2403-1 |
| SLES 11 SP3 | mutt | 1.5.17-42.43.1 | SUSE-SU-2018:2403-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | mutt | 1.10.1-55.3.1 | SUSE-SU-2019:1196-1, SUSE-SU-2018:2084-1 |
| SLES for SAP 11 SP4 | mutt | 1.5.17-42.43.1 | SUSE-SU-2018:2403-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | mutt | 1.5.17-42.43.1 | SUSE-SU-2018:2403-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mutt | 2.0.7-2.2 | openSUSE-SU-2024:11069-1 |
| openSUSE Tumbleweed | neomutt | 20210205-3.3 | openSUSE-SU-2024:11079-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.8 | mutt | 1.10.1-r0 | — |
| Alpine v3.7 | mutt | 1.10.1-r0 | — |
| Alpine v3.6 | mutt | 1.10.1-r0 | — |
| Alpine v3.5 | mutt | 1.10.1-r0 | — |
Advisories 12
- USN-7204-1 neomutt vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4277-1 mutt - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1455-1 mutt - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3719-1 mutt vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3719-3 mutt vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2018:2084-1 Security update for mutt SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11069-1 mutt-2.0.7-2.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1196-1 Security update for mutt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2403-1 Security update for mutt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2085-1 Security update for mutt SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11079-1 neomutt-20210205-3.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0102 mutt: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 15, 2025
References
- USN-3719-3 vendor-advisory
- DSA-4277 vendor-advisory
- https://gitlab.com/muttmua/mutt/commit/e0131852c6059107939893016c8ff56b6e42865d
- USN-3719-2 vendor-advisory
- [debian-lts-announce] 20180802 [SECURITY] [DLA 1455-1] mutt security update mailing-list
- GLSA-201810-07 vendor-advisory
- https://github.com/neomutt/neomutt/commit/e27b65b3bf8defa34db58919496056caf3850cd4
- http://www.mutt.org/news.html
- https://neomutt.org/2018/07/16/release
- USN-3719-1 vendor-advisory