8.8

CVE-2019-3856

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libssh2 ≫ Libssh2 Version < 1.8.1
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Opensuse ≫ Leap Version 15.0
Opensuse ≫ Leap Version 42.3
Redhat ≫ Enterprise Linux Version 8.0 SwEdition advanced_virtualization
Fedoraproject ≫ Fedora Version 28
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 6.13% 0.925
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NIST 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat 7.5 1.6 5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Patch
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
https://seclists.org/bugtraq/2019/Apr/25
Third Party Advisory
Mailing List
https://security.netapp.com/advisory/ntap-20190327-0005/
Third Party Advisory
https://www.debian.org/security/2019/dsa-4431
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0679
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1175
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1652
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1791
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1943
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2399
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3856
Patch
Third Party Advisory
Issue Tracking
https://www.libssh2.org/CVE-2019-3856.html
Patch
Vendor Advisory