Medium severity · published Jun 21, 2020
CVE-2020-14954
Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3
5.9
CVSS
2.3%
EPSS
No
On KEV
Description
Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32 · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
MU
Mutt · Mutt
before 1.14.4 · source: NVD
NE
Neomutt · Neomutt
before 20200619 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 16.04; 18.04; 19.10; 20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14954
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14954
Mailing List
http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html
Product
http://www.mutt.org/
Patch
https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc
Release Notes
https://github.com/neomutt/neomutt/releases/tag/20200619
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