CVE-2019-19648 Information

Description

In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0 command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access resulting in Denial of Service (application crash) or potential code execution.

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/VirusTotal/yara/issues/1178

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