CVE-2019-3863
8.8
HIGH
CVSS 3.1
EPSS 8.6%
Description
A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
How to fix CVE-2019-3863
To remediate CVE-2019-3863, upgrade the affected package to a fixed version below.
- Alpine/libssh2—upgrade to 1.8.1-r0 or later
- —upgrade to 1.8.0-2.1 or later
Is CVE-2019-3863 being exploited?
Moderate — EPSS is 8.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 1.8.1-r0
- from 0, < 1.8.0-2.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |