CVE-2019-3856
HIGH8.8EPSS 4.6%Published: 3/25/2019Modified: 12/3/2025
Also known as:ALPINE-CVE-2019-3856DEBIAN-CVE-2019-3856
Description
An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
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 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |