Allocation of Resources Without Limits or Throttling in sslh - CVE-2025-46807
Published: June 21, 2025
Vulnerability identifier: #VU111714
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-46807
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a file descriptor exhaustion in sslh-select.c and sslh-ev.c. A remote attacker can send specially crafted UDP packets to the server and perform a denial of service (DoS) attack.
Affected software
sslh
Arch Linux
sslh
Arch Linux
sslh
How to mitigate CVE-2025-46807
Install updates from vendor's website.
sslh - update to 2.2.4
sslh - update to 2.2.4-1
sslh - update to 2.2.4-1