Out-of-bounds read in YARA - CVE-2019-19648
Published: December 9, 2019 / Updated: January 26, 2021
Vulnerability identifier: #VU23465
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2019-19648
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: VirusTotal
Affected software:
YARA
YARA
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the "macho_parse_file" functionality in "macho/macho.c" file when "command_size" may be inconsistent with the real size. A remote attacker can send a specially crafted MachO file, trigger out-of-bounds read error and cause a denial of service condition on the target system.
How to mitigate CVE-2019-19648
Install update from vendor's website.