CVE-2021-32055: mutt Out-of-bounds Read
CVSS: 9.1v3.1CriticalModified
AliasesUBUNTU-CVE-2021-32055DEBIAN-CVE-2021-32055openSUSE-SU-2024:11719-1
Published 05-05-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-32055 is a critical (CVSS 9.1) Out-of-bounds Read vulnerability in mutt. EPSS estimates a 2.55% chance of exploitation in the next 30 days, higher than 84.8% of scored vulnerabilities.
CVSS score
9.1/10
010
Critical · v3.1 (NVD)EPSS score
2.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 05-05-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Mutt 1.11.0 through 2.0.x before 2.0.7 (and NeoMutt 2019-10-25 through 2021-05-04) has a $imap_qresync issue in which imap/util.c has an out-of-bounds read in situations where an IMAP sequence set ends with a comma. NOTE: the $imap_qresync setting for QRESYNC is not enabled by default.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Medium 5.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.55%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
0.00 pp
From 2.55% on 19-09-2026
19-09-202619-10-2026
EPSS score2.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- mutt< 2.0.5-4.1
- neomutt< 20201127+dfsg.1-1.2
Ubuntu2 products
- mutt< 1.5.24-1ubuntu0.6+esm2 | < 1.13.2-1ubuntu0.5
- neomutt< 20191207+dfsg.1-1.1ubuntu0.1~esm1
Mutt1 product
- mutt≥ 1.11.0, < 2.0.7
Neomutt1 product
- neomutt≥ 20191025, ≤ 20210504
Opensuse1 product
- neomutt&distro=openSUSE Tumbleweed< 20211029-1.1
5 vendors · 7 products
References
12 links- gitlab.com/muttmua/mutt/-/commit/7c4779ac24d2fb68a2a47b58c7904118f40965d5X Refsource MISCPatchThird Party Advisory
- lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20210503/000036.htmlX Refsource MISCREPORTMailing ListVendor Advisory
- github.com/neomutt/neomutt/commit/fa1db5785e5cfd9d3cd27b7571b9fe268d2ec2dcX Refsource MISCPatchThird Party Advisory
