SB2025070768 - Fedora 42 update for zsync
Published: July 7, 2025
Security Bulletin ID
SB2025070768
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2025-4638)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to usage of a vulnerable version of the inftrees.c component from the zlib library. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.