CVE-2026-63090
描述
ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in the fxp.c component. Attackers can supply oversized fragments to trigger an incorrectly conditioned reallocation, corrupt pool freelist metadata, overwrite the root_fs BSS global pointer to reference a fake filesystem struct, and redirect pr_fsio_stat() to system() via a crafted RENAME request.
如何修補 CVE-2026-63090
目前尚未發布修補版本。可考慮移除受影響套件,或參考下方連結中的上游建議。
- Debian/proftpd-dfsg—未列出修補版本
CVE-2026-63090 正在被利用嗎?
目前沒有被利用訊號。CVE-2026-63090 既不在 CISA KEV 也沒有最新的 EPSS 分數。
受影響套件(1)
- from 0