Critical severity · published May 5, 2021
CVE-2021-32055
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…
9.1
CVSS
2.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
Mutt · Mutt
1.11.0 before 2.0.7 · source: NVD
NE
Neomutt · Neomutt
20191025 through 20210504 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32055
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32055
Mailing List
http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20210503/000036.html
Patch
https://github.com/neomutt/neomutt/commit/fa1db5785e5cfd9d3cd27b7571b9fe268d2ec2dc
Patch
https://gitlab.com/muttmua/mutt/-/commit/7c4779ac24d2fb68a2a47b58c7904118f40965d5
Third Party Advisory
https://security.gentoo.org/glsa/202105-05
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