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Vulnerability · Published Jun 21, 2020 · Assigned by mitre

CVE-2020-14954

Medium 5.9

In plain English

A medium-severity security flaw in the mutt package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.9Medium
Exploit odds (30 days)2.3%top 16.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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."

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12mutt1.14.4-1DEBIAN-CVE-2020-14954
Debian:13mutt1.14.4-1DEBIAN-CVE-2020-14954
Debian:14mutt1.14.4-1DEBIAN-CVE-2020-14954
Debian:12neomutt20200619+dfsg.1-1DEBIAN-CVE-2020-14954
Debian:13neomutt20200619+dfsg.1-1DEBIAN-CVE-2020-14954
Debian:14neomutt20200619+dfsg.1-1DEBIAN-CVE-2020-14954

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References