CVE-2019-3857
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- CVE-2019-3857
CVE Details
| Release Date: | 2019-03-25 |
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.
See more information about CVE-2019-3857 from MITRE CVE dictionary and NIST NVD
CVSS v3.0 metrics
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 8.8 | Base Metrics: | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Access Vector: | Network | Attack Complexity: | Low |
| Privileges Required: | None | User Interaction: | Required |
| Scope: | Unchanged | Confidentiality Impact: | High |
| Integrity Impact: | High | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 6 (libssh2) | ELSA-2019-1652 | 2019-07-02 |
| Oracle Linux version 7 (libssh2) | ELSA-2019-0679 | 2019-03-28 |
| Oracle Linux version 8 (hivex) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libguestfs) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libiscsi) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libssh2) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libvirt) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (nbdkit) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (netcf) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (seabios) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (sgabios) | ELSA-2019-1175 | 2019-07-30 |
| Oracle Linux version 8 (supermin) | ELSA-2019-1175 | 2019-07-30 |
| Oracle VM version 3.3 (libssh2) | OVMSA-2019-0032 | 2019-07-03 |
| Oracle VM version 3.4 (libssh2) | OVMSA-2019-0032 | 2019-07-03 |
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