CVE-2019-3863
HIGH8.8EPSS 8.6%Published: 3/25/2019Modified: 4/28/2026
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.
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |