CVE-2023-6857

CVE Details

Release Date:

2023-12-19

Description

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.

See more information about CVE-2023-6857 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.1	Base Metrics:	AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Changed	Confidentiality Impact:	Low
Integrity Impact:	Low	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (firefox)	ELSA-2024-0026	2024-01-02
Oracle Linux version 7 (thunderbird)	ELSA-2024-0027	2024-01-02
Oracle Linux version 8 (firefox)	ELSA-2024-0012	2024-01-03
Oracle Linux version 8 (thunderbird)	ELSA-2024-0003	2024-01-03
Oracle Linux version 9 (firefox)	ELSA-2024-0025	2024-01-03
Oracle Linux version 9 (thunderbird)	ELSA-2024-0001	2024-01-03

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team