Buffer overflow in UnrealIRCd - CVE-2023-50784
Published: December 18, 2023
Vulnerability identifier: #VU84513
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-50784
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing packets. A remote attacker can send a overly large packets to the websockets, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
UnrealIRCd
Fedora
unrealircd
Fedora
unrealircd
How to mitigate CVE-2023-50784
Install updates from vendor's website.
UnrealIRCd - update to 6.1.4
unrealircd - addressed in versions 6.1.4-1.el7, 6.1.4-1.el8, 6.1.4-1.el9, 6.1.4-1.fc38, 6.1.4-1.fc39
unrealircd - addressed in versions 6.1.4-1.el7, 6.1.4-1.el8, 6.1.4-1.el9, 6.1.4-1.fc38, 6.1.4-1.fc39