CVE-2023-6857

2023-12-1914:15:07

CWE-362

[email protected]

web.nvd.nist.gov

cve-2023-6857

firefox

symlink

race condition

unix

vulnerability

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

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.

Affected configurations

Nvd

Node

mozillafirefoxRange<121.0

mozillafirefox_esrRange<115.6

mozillathunderbirdRange<115.6

AND

applemacosMatch-

googleandroidMatch-

linuxlinux_kernelMatch-

Node

debiandebian_linuxMatch10.0

debiandebian_linuxMatch11.0

debiandebian_linuxMatch12.0

VendorProductVersionCPE
mozillafirefox*cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozillafirefox_esr*cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
mozillathunderbird*cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
applemacos-cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
googleandroid-cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
linuxlinux_kernel-cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
debiandebian_linux11.0cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
debiandebian_linux12.0cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mozilla	firefox	*	cpe:2.3:a:mozilla:firefox::::::::
mozilla	firefox_esr	*	cpe:2.3:a:mozilla:firefox_esr::::::::
mozilla	thunderbird	*	cpe:2.3:a:mozilla:thunderbird::::::::
apple	macos	-	cpe:2.3:o:apple:macos:-:::::::*
google	android	-	cpe:2.3:o:google:android:-:::::::*
linux	linux_kernel	-	cpe:2.3:o:linux:linux_kernel:-:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*
debian	debian_linux	12.0	cpe:2.3:o:debian:debian_linux:12.0:::::::*