Vulnerabilities > CVE-2021-26236 - Out-of-bounds Write vulnerability in Faststone Image Viewer
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
FastStone Image Viewer v.<= 7.5 is affected by a Stack-based Buffer Overflow at 0x005BDF49, affecting the CUR file parsing functionality (BITMAPINFOHEADER Structure, 'BitCount' file format field), that will end up corrupting the Structure Exception Handler (SEH). Attackers could exploit this issue to achieve code execution when a user opens or views a malformed/specially crafted CUR file.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://voidsec.com/advisories/cve-2021-26236-faststone-image-viewer-v-7-5-stack-based-buffer-overflow/
- https://voidsec.com/advisories/cve-2021-26236-faststone-image-viewer-v-7-5-stack-based-buffer-overflow/
- https://voidsec.com/fuzzing-faststone-image-viewer-cve-2021-26236
- https://voidsec.com/fuzzing-faststone-image-viewer-cve-2021-26236
- https://www.exploit-db.com/exploits/49660
- https://www.exploit-db.com/exploits/49660