Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2020-14954

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Published: Jun 21, 2020 | Modified: Nov 21, 2024
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
7.4 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-14954
CWEhttps://cwe.mitre.org/data/definitions/74.html

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.

Weakness

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Affected Software

NameVendorStart VersionEnd Version
MuttMutt*1.14.4 (excluding)
MuttUbuntubionic*
MuttUbuntueoan*
MuttUbuntuesm-infra/bionic*
MuttUbuntuesm-infra/focal*
MuttUbuntuesm-infra/xenial*
MuttUbuntufocal*
MuttUbuntutrusty*
MuttUbuntuupstream*
MuttUbuntuxenial*
NeomuttUbuntubionic*
NeomuttUbuntueoan*
NeomuttUbuntuesm-apps/bionic*
NeomuttUbuntuesm-apps/focal*
NeomuttUbuntufocal*
NeomuttUbuntutrusty*
NeomuttUbuntuupstream*

Potential Mitigations

References

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