VULNERABILITY INTELLIGENCE
CVE-2019-17498
CVSS score8.1 HIGH
EPSS probability3.81%
CISA KEVNot currently listed
Published2019-10-21
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
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.
Weakness classification
- CWE-190: Integer Overflow or Wraparound
Primary references
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org
- cve@mitre.org — Broken Link
- cve@mitre.org — Exploit, Third Party Advisory
- cve@mitre.org — Exploit, Third Party Advisory
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Third Party Advisory