SB2025102425 - Denial of service in LZ4
Published: October 24, 2025
Security Bulletin ID
SB2025102425
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Neutralization of Null Byte or NUL Character (CVE-ID: CVE-2025-62813)
CWE-ID: CWE-158 - Improper Neutralization of Null Byte or NUL Character
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to missing checks within the LZ4F_createCDict_advanced() function in lib/lz4frame.c. A remote attacker can trick the victim into opening a specially crafted archive and crash the application.
Remediation
Install update from vendor's website.