#VU64088 Out-of-bounds read in Apache HTTP Server - CVE-2022-30556
Published: June 8, 2022 / Updated: April 21, 2023
Vulnerability identifier: #VU64088
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-30556
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Apache HTTP Server
Apache HTTP Server
Software vendor:
Apache Foundation
Apache Foundation
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing HTTP requests in mod_lua with websockets. A remote attacker can force the module to return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer and gain access to sensitive information.
Remediation
Install updates from vendor's website.