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CVE-2020-27347

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Date: November 5, 2020

In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output.

Language: C

Severity Score

8.8

Related Resources (8)

Url: https://www.openwall.com/lists/oss-security/2020/11/05/3

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-27347

Url: https://security.gentoo.org/glsa/202011-10

Url: https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES

Url: https://security.alpinelinux.org/vuln/CVE-2020-27347

Url: https://github.com/tmux/tmux/commit/a868bacb46e3c900530bed47a1c6f85b0fbe701c

Url: https://security-tracker.debian.org/tracker/CVE-2020-27347

Url: https://www.mend.io/vulnerability-database/CVE-2020-27347

Severity Score

8.8

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Stack-based Buffer Overflow

CWE-121

CVSS v3.1

Base Score:	8.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	CHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	4.6
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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