Input validation error in radare2 - CVE-2019-19647

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Main Vulnerability Database Vulnerabilities #VU49983

Input validation error in radare2 - CVE-2019-19647

Published: December 9, 2019 / Updated: January 25, 2021


Vulnerability identifier: #VU49983
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-2019-19647
CWE-ID: CWE-20
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 insufficient validation of user-supplied input within the  r_asm_pseudo_incbin(0 function at libr/asm/asm.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Affected software

radare2
Fedora
cutter-re
radare2

How to mitigate CVE-2019-19647

Install updates from vendor's website.

radare2 - update to 4.1.0
cutter-re - addressed in versions 1.10.1-1.fc30, 1.10.1-1.fc31, 1.10.1-2.fc30, 1.10.1-2.fc31, 1.10.1-3.fc30, 1.10.1-3.fc31
radare2 - addressed in versions 4.2.1-1.el7, 4.2.1-1.fc30, 4.2.1-1.fc30.2, 4.2.1-1.fc31, 4.2.1-1.fc31.2, 4.2.1-2.fc30, 4.2.1-2.fc31

External References

Related Security Bulletins