Stack-based buffer overflow in radare2 - CVE-2018-20456
Published: December 25, 2018 / Updated: July 17, 2020
Vulnerability identifier: #VU31172
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-20456
CWE-ID: CWE-121
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 a stack-based buffer over-read) by crafting an input file, a related issue to CVE-2018-20455. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
radare2
Fedora
radare2
Fedora
radare2
How to mitigate CVE-2018-20456
Update to version 3.1.1.
radare2 - update to 3.1.1
radare2 - addressed in versions 3.2.0-1.fc28, 3.2.0-1.fc29
radare2 - addressed in versions 3.2.0-1.fc28, 3.2.0-1.fc29