medium
5.9
CWE
74
Advisory Published
CVE Published
Updated

CVE-2020-14954

First published: Sun Jun 21 2020(Updated: )

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."

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Mutt Mutt<1.14.4
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Neomutt Neomutt<20200619
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=8.0
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
openSUSE Leap=15.1
openSUSE Leap=15.2
ubuntu/mutt<1.9.4-3ubuntu0.3
1.9.4-3ubuntu0.3
ubuntu/mutt<1.10.1-2.1ubuntu0.2
1.10.1-2.1ubuntu0.2
ubuntu/mutt<1.13.2-1ubuntu0.2
1.13.2-1ubuntu0.2
ubuntu/mutt<1.14.4-1
1.14.4-1
ubuntu/mutt<1.5.24-1ubuntu0.4
1.5.24-1ubuntu0.4
ubuntu/neomutt<20200619+dfsg.1-1
20200619+dfsg.1-1
debian/mutt
2.0.5-4.1+deb11u3
2.2.12-0.1~deb12u1
2.2.9-1+deb12u1
2.2.13-1
debian/neomutt
20201127+dfsg.1-1.2
20220429+dfsg1-4.1
20240425+dfsg-2

Remedy

https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc

Remedy

https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ff4

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2020-14954.

  • What is the severity of CVE-2020-14954?

    The severity of CVE-2020-14954 is medium, with a severity value of 5.9.

  • Which software versions are affected by CVE-2020-14954?

    Mutt before 1.14.4 and NeoMutt before 2020-06-19 are affected by CVE-2020-14954.

  • What is the remedy for CVE-2020-14954?

    The remedy for CVE-2020-14954 is to update to the patched versions: Mutt 1.14.4 or later, and NeoMutt 2020-06-19 or later.

  • Where can I find more information about CVE-2020-14954?

    More information about CVE-2020-14954 can be found at the following references: [http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html](http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html), [http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html](http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html), [http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html](http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html)

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