NULL pointer dereference in LiteSpeed QUIC - CVE-2022-30592
Published: August 24, 2022
Vulnerability identifier: #VU66731
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-2022-30592
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within liblsquic/lsquic_qenc_hdl.c when handling HTTP/3 requests. A remote attacker can send multiple requests to the server and perform a denial of service (DoS) attack.
Affected software
LiteSpeed QUIC
How to mitigate CVE-2022-30592
Install updates from vendor's website.
LiteSpeed QUIC - update to 3.1.0