CVE-2023-6857

2023-12-1914:15:07

Alpine Linux Development Team

security.alpinelinux.org

cve-2023-6857

symlink

race

vulnerability

firefox

unix

operating systems

thunderbird

esr

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

AI Score

6.6

Confidence

High

EPSS

0.001

Percentile

43.3%

JSON

When resolving a symlink, a race may occur where the buffer passed to readlink may actually be smaller than necessary.
This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchfirefox-esr< 115.6.0-r0UNKNOWN
Alpine3.18-communitynoarchfirefox-esr< 115.6.0-r0UNKNOWN
Alpine3.19-communitynoarchfirefox-esr< 115.6.0-r0UNKNOWN
Alpine3.20-communitynoarchfirefox-esr< 115.6.0-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	firefox-esr	< 115.6.0-r0	UNKNOWN
Alpine	3.18-community	noarch	firefox-esr	< 115.6.0-r0	UNKNOWN
Alpine	3.19-community	noarch	firefox-esr	< 115.6.0-r0	UNKNOWN
Alpine	3.20-community	noarch	firefox-esr	< 115.6.0-r0	UNKNOWN