Vulnerabilidad en libssh2 (CVE-2019-3859)
Gravedad CVSS v3.1:
CRÍTICA
Tipo:
CWE-125
Lectura fuera de límites
Fecha de publicación:
21/03/2019
Última modificación:
18/12/2025
Descripción
Se ha descubierto un error de lectura fuera de límites en libssh2, en versiones anteriores a la 1.8.1, en las funciones _libssh2_packet_require y _libssh2_packet_requirev. Un atacante remoto que comprometa un servidor SSH podría ser capaz de provocar una denegación de servicio o una lectura de datos en la memoria del cliente.
Impacto
Puntuación base 3.x
9.10
Gravedad 3.x
CRÍTICA
Puntuación base 2.0
6.40
Gravedad 2.0
MEDIA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:* | 1.8.1 (excluyendo) | |
| cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* | ||
| cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | ||
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
| cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* | ||
| cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* | ||
| cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página
Referencias a soluciones, herramientas e información
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- http://www.securityfocus.com/bid/107485
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html
- https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
- https://seclists.org/bugtraq/2019/Apr/25
- https://seclists.org/bugtraq/2019/Mar/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3859.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html
- http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
- http://www.openwall.com/lists/oss-security/2019/03/18/3
- http://www.securityfocus.com/bid/107485
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html
- https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
- https://seclists.org/bugtraq/2019/Apr/25
- https://seclists.org/bugtraq/2019/Mar/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3859.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html