CVE-2019-17498
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-17498
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-17498.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.9.0-3 | |
| sles | affected | | |
| debian | bookworm | fixed | 1.9.0-1 |
| debian | bullseye | fixed | 1.9.0-1 |
| debian | forky | fixed | 1.9.0-1 |
| debian | sid | fixed | 1.9.0-1 |
| debian | trixie | fixed | 1.9.0-1 |
References
Verify integrity in audit chain (admin only). AS-IS.