Description (CNA)
LibVNCServer versions 0.9.15 and prior (fixed in commit 009008e) contain a heap out-of-bounds read vulnerability in the UltraZip encoding handler that allows a malicious VNC server to cause information disclosure or application crash. Attackers can exploit improper bounds checking in the HandleUltraZipBPP() function by manipulating subrectangle header counts to read beyond the allocated heap buffer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| LibVNC / LibVNCServer | affected 0 through 0.9.15; unaffected 009008e2f4d5a54dd71f422070df3af7b3dbc931 |
CWE
CWE-125
References
- https://github.com/LibVNC/libvncserver/security/advisories/GHSA-87q7-v983-qwcj
- https://github.com/LibVNC/libvncserver/commit/009008e2f4d5a54dd71f422070df3af7b3dbc931
- https://www.vulncheck.com/advisories/libvncserver-ultrazip-encoding-heap-out-of-bounds-read
ADP enrichment
No English description supplied.