CVE-2023-6857

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

19/12/2023

Last modified:

02/02/2024

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

5.30

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:mozilla:firefox::::::::		121.0 (excluding)
cpe:2.3:a:mozilla:firefox_esr::::::::		115.6 (excluding)
cpe:2.3:a:mozilla:thunderbird::::::::		115.6 (excluding)
cpe:2.3:o:apple:macos:-:::::::*
cpe:2.3:o:google:android:-:::::::*
cpe:2.3:o:linux:linux_kernel:-:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:debian:debian_linux:12.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:mozilla:firefox::::::::		121.0 (excluding)
cpe:2.3:a:mozilla:firefox_esr::::::::		115.6 (excluding)
cpe:2.3:a:mozilla:thunderbird::::::::		115.6 (excluding)
cpe:2.3:o:apple:macos:-:::::::*
cpe:2.3:o:google:android:-:::::::*
cpe:2.3:o:linux:linux_kernel:-:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:o:debian:debian_linux:12.0:::::::*

CVE-2023-6857

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools