CVE-2019-3855
libssh2 - security update
8.8
HIGH
CVSS 3.1
EPSS 16.2%
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.
How to fix CVE-2019-3855
To remediate CVE-2019-3855, upgrade the affected package to a fixed version below.
- —upgrade to 1.8.1-r0 or later
- —upgrade to 1.8.0-2.1 or later
- —upgrade to 1.4.3-4.1+deb8u2 or later
- —upgrade to 1.7.0-1+deb9u1 or later
Is CVE-2019-3855 being exploited?
Moderate — EPSS is 16.2%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- from 0, < 1.8.1-r0
- from 0, < 1.8.0-2.1
- from 0, < 1.4.3-4.1+deb8u2
- from 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 |