CVE-2019-17498
- State
- Published
- Severity
- Not scored
- Published
- Oct 21, 2019
- Updated
- Oct 14, 2026
- Reserved
- Oct 11, 2019
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322d64/src/packet.c#L480
- https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/
- https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9ceec685373da12e6fc752d/libssh2/out_of_bounds_read_disconnect_CVE-2019-17498
- FEDORA-2019-91529f19e4vendor-advisory
- openSUSE-SU-2019:2483vendor-advisory
- [debian-lts-announce] 20191113 [SECURITY] [DLA 1991-1] libssh2 security updatemailing-list
- FEDORA-2019-ec04c34768vendor-advisory
- https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c
- [debian-lts-announce] 20211217 [SECURITY] [DLA 2848-1] libssh2 security updatemailing-list
- https://security.netapp.com/advisory/ntap-20220909-0004/
- http://packetstormsecurity.com/files/172835/libssh2-1.9.0-Out-Of-Bounds-Read.html
- [debian-lts-announce] 20230908 [SECURITY] [DLA 3559-1] libssh2 security updatemailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.