Heap-based buffer overflow in SVG Native Viewer - CVE-2021-39823
Published: September 16, 2021
Vulnerability identifier: #VU56656
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-39823
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing SVG files. A remote attacker can pass specially crafted SVG file to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
SVG Native Viewer
How to mitigate CVE-2021-39823
Install updates from vendor's website.
SVG Native Viewer - update to b79ecc3