CVE-2019-3861
CRITICAL9.1EPSS 1.5%Published: 3/25/2019Modified: 12/3/2025
Also known as:ALPINE-CVE-2019-3861DEBIAN-CVE-2019-3861
Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Affected packages (2)
- Alpine/libssh2from 0, < 1.8.1-r0
- Debian/libssh2from 0, < 1.8.0-2.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |