CVE-2019-19590 Information

Description

In radare2 through 4.0 there is an integer overflow for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c. This integer overflow will result in a Use-After-Free for the buffer tokens which can be filled with arbitrary malicious data after the free. This allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted input.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/radareorg/radare2/issues/15543 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRQXCOVFWZIIMAZIAAFAVQGZOS7LGHXP/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YQTOWEDFXDTGTD6D4NHRB4FUURQSTTEN/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8