CVE-2019-3863
critical
CVSS v3
—
CVSS v2
—
VIR risk
9.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-3863
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-3863.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201903-12
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.8.1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 1.8.0-2.1 |
| debian | bullseye | fixed | 1.8.0-2.1 |
| debian | forky | fixed | 1.8.0-2.1 |
| debian | sid | fixed | 1.8.0-2.1 |
| debian | trixie | fixed | 1.8.0-2.1 |
References
Verify integrity in audit chain (admin only). AS-IS.