Description (CNA)
Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed directly to the GCM decrypt function, overwriting the stack cookie and return address to potentially achieve remote code execution before any authentication occurs.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Xlight / Xlight FTP Server | affected 0 before 3.9.5 |
CWE
CWE-121
References
- https://www.xlightftpd.com/whatsnew.htm
- https://www.vulncheck.com/advisories/xlight-ftp-server-pre-auth-stack-buffer-overflow-via-ssh-gcm-cipher
ADP enrichment
No English description supplied.
No references supplied.