CVE-2026-39834
CRITICAL9.1EPSS 0.05%Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh
發布日:2026/5/22修改日:2026/5/29
描述
When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.
受影響套件(2)
- Debian/golang-go.cryptofrom 0
- Go/golang.org/x/cryptofrom 0, < 0.52.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |