Out-of-bounds Read in Mutt
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 IMAP sequence set ends with a comma. NOTE: the $imap_qresync setting for QRESYNC is not enabled by default.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
Weakness classification (CWE)
References
- gitlab.com/muttmua/mutt/-/commit/7c4779ac24d2fb68a2a47b58c7904118f40965d5 (Patch, Third Party Advisory)
- lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20210503/000036.html (Mailing List, Vendor Advisory)
- github.com/neomutt/neomutt/commit/fa1db5785e5cfd9d3cd27b7571b9fe268d2ec2dc (Patch, Third Party Advisory)
- security.gentoo.org/glsa/202105-05 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32055?
- CVE-2021-32055 is a critical-severity vulnerability in Mutt, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2021-05-05.
- How severe is CVE-2021-32055?
- Critical severity. CVSS v3 base score is 9.1 out of 10.