Out-of-bounds read in radare2 - CVE-2018-20459
Published: December 25, 2018 / Updated: January 25, 2021
Vulnerability identifier: #VU49981
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-20459
CWE-ID: CWE-125
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 boundary condition within the armass_assemble() function in libr/asm/arch/arm/armass.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and perform a denial of service (DoS) attack.
Affected software
radare2
Fedora
radare2
Fedora
radare2
How to mitigate CVE-2018-20459
Install updates from vendor's website.
radare2 - update to 3.2.0
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