Out-of-bounds read in LibSass - CVE-2019-18798
Published: November 6, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30655
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-2019-18798
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
LibSass before 3.6.3 allows a heap-based buffer over-read in Sass::weaveParents in ast_sel_weave.cpp.
Affected software
LibSass
IBM Security Verify Information Queue
IBM Security Verify Information Queue
How to mitigate CVE-2019-18798
Install update from vendor's website.
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