CVE-2019-3856
Estado: ModificadaAlta (8.8)—
An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests 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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 6.13%
- Percentil entre todas las CVEs puntuadas: 93
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (13)
Debian — Debian LinuxFedoraproject — FedoraLibssh2 — Libssh2Netapp — Ontap Select Deploy Administration UtilityOpensuse — LeapOracle — Peoplesoft Enterprise PeopletoolsRedhat — Enterprise LinuxRedhat — Enterprise Linux DesktopRedhat — Enterprise Linux ServerRedhat — Enterprise Linux Server AUSRedhat — Enterprise Linux Server EUSRedhat — Enterprise Linux Server TUSRedhat — Enterprise Linux Workstation
CWE
- CWE-190, CWE-787
- CWE-190, CWE-787
Referencias
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
- https://access.redhat.com/errata/RHSA-2019:0679
- https://access.redhat.com/errata/RHSA-2019:1175
- https://access.redhat.com/errata/RHSA-2019:1652
- https://access.redhat.com/errata/RHSA-2019:1791
- https://access.redhat.com/errata/RHSA-2019:1943
- https://access.redhat.com/errata/RHSA-2019:2399
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3856
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://seclists.org/bugtraq/2019/Apr/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3856.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
- https://access.redhat.com/errata/RHSA-2019:0679
- https://access.redhat.com/errata/RHSA-2019:1175
- https://access.redhat.com/errata/RHSA-2019:1652
- https://access.redhat.com/errata/RHSA-2019:1791
- https://access.redhat.com/errata/RHSA-2019:1943
- https://access.redhat.com/errata/RHSA-2019:2399
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3856
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://seclists.org/bugtraq/2019/Apr/25
- https://security.netapp.com/advisory/ntap-20190327-0005/
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3856.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
JSON original (NVD)
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