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Fencer Vulns
medium 4.3

CVE-2022-1328 json

Buffer Overflow in uudecoder in Mutt affecting all versions starting from 0.94.13 before 2.2.3 allows read past end of input line

published 2022-04-14 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-24656

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Buffer Overflow in uudecoder in Mutt affecting all versions starting from 0.94.13 before 2.2.3 allows read past end of input line

Patch / fix

  • mutt mutt 2.2.3
  • mutt Debian 14, Debian 13, Debian 12 2.2.3-1
  • neomutt Debian 14, Debian 13, Debian 12 20220429+dfsg1-1

debian advisories DEBIAN-CVE-2022-1328

  • mutt Ubuntu 18.04 LTS 1.9.4-3ubuntu0.6
  • mutt Ubuntu 20.04 LTS 1.13.2-1ubuntu0.5
  • mutt Ubuntu 22.04 LTS 2.1.4-1ubuntu1.1
  • mutt Ubuntu Pro 16.04 LTS 1.5.24-1ubuntu0.6+esm2
  • neomutt Ubuntu Pro 18.04 LTS 20171215+dfsg.1-1ubuntu0.1~esm1
  • neomutt Ubuntu Pro 20.04 LTS 20191207+dfsg.1-1.1ubuntu0.1~esm1
  • neomutt Ubuntu Pro 22.04 LTS 20211029+dfsg1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2022-1328

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mutt RHEL 9 5:2.2.6-1.el9
  • mutt RHEL 8 5:2.0.7-2.el8

red hat advisories RHSA-2022:8219RHSA-2022:7640

  • mutt SLES for SAP 12 SP5, SLES 12 SP5 1.10.1-55.27.1
  • mutt SLE Real Time 15 SP2, SLE Module for Basesystem 15 SP3, openSUSE Leap 15.3 1.10.1-150000.3.23.1

suse advisories SUSE-SU-2022:1478-1SUSE-SU-2022:1376-1

  • mutt openSUSE Tumbleweed 2.2.3-1.1
  • neomutt openSUSE Tumbleweed 20220429-1.1
  • neomutt Package Hub 15 SP4, openSUSE Leap 15.4 20220429-bp154.2.3.1

opensuse advisories openSUSE-SU-2024:12010-1openSUSE-SU-2024:12105-1openSUSE-SU-2022:10020-1

  • mutt AlmaLinux 9 5:2.2.6-1.el9
  • mutt AlmaLinux 8 5:2.0.7-2.el8

almalinux advisories ALSA-2022:8219ALSA-2022:7640

  • mutt Rocky Linux 9 5:2.2.6-1.el9
  • mutt Rocky Linux 8 5:2.0.7-2.el8

rocky linux advisories RLSA-2022:8219RLSA-2022:7640

  • mutt Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 2.2.3-r0

alpine advisories ALPINE-CVE-2022-1328

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mutt CBL-Mariner 2.0 2.2.12-1

azure linux advisories AZL-9472

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-1328 updated cvss 6.5

mutt: buffer overflow in uudecoder function

  • Red Hat Enterprise Linux 6 mutt Red Hat Enterprise Linux 7 mutt
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) mutt 2.0.7-2.el8
    fixed: vendor fix RHSA-2022:7640
  • Red Hat Enterprise Linux AppStream (v. 9) mutt 2.2.6-1.el9
    fixed: vendor fix RHSA-2022:8219

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.71% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/muttmua/mutt/-/issues/404 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Mutt Mutt

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.