NULL pointer dereference in LibSass - CVE-2019-18799
Published: November 6, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30656
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-2019-18799
CWE-ID: CWE-476
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 NULL pointer dereference error in Sass::Parser::parseCompoundSelector in parser_selectors.cpp. A remote attacker can perform a denial of service (DoS) attack.
Affected software
LibSass
IBM Security Verify Information Queue
IBM Security Verify Information Queue
How to mitigate CVE-2019-18799
Update to version 3.6.3.
LibSass - update to 3.6.3
IBM Security Verify Information Queue - update to 10.0.0
IBM Security Verify Information Queue - update to 10.0.0