CVE-2019-3857
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 25, 2019
- Updated
- Oct 14, 2026
- Reserved
- Jan 3, 2019
Description
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 7.5 High | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libssh2The libssh2 Project |
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3857
- https://www.libssh2.org/CVE-2019-3857.html
- [debian-lts-announce] 20190326 [SECURITY] [DLA 1730-1] libssh2 security updatemailing-list
- https://security.netapp.com/advisory/ntap-20190327-0005/
- RHSA-2019:0679vendor-advisory
- openSUSE-SU-2019:1075vendor-advisory
- openSUSE-SU-2019:1109vendor-advisory
- FEDORA-2019-3348cb4934vendor-advisory
- DSA-4431vendor-advisory
- 20190415 [SECURITY] [DSA 4431-1] libssh2 security updatemailing-list
- RHSA-2019:1175vendor-advisory
- RHSA-2019:1652vendor-advisory
- RHSA-2019:1791vendor-advisory
- RHSA-2019:1943vendor-advisory
- RHSA-2019:2399vendor-advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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