CVE-2019-3855
HIGH8.8EPSS 16.2%libssh2 - security update
Published: 3/21/2019Modified: 12/3/2025
Also known as:ALPINE-CVE-2019-3855DEBIAN-CVE-2019-3855
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 packets are read from the server. 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 (4)
- Alpine/libssh2from 0, < 1.8.1-r0
- Debian/libssh2from 0, < 1.8.0-2.1
- Debian/libssh2from 0, < 1.4.3-4.1+deb8u2
- Debian/libssh2from 0, < 1.7.0-1+deb9u1
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 |