8.8

CVE-2019-3863

A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libssh2 ≫ Libssh2 Version < 1.8.1
Debian ≫ Debian Linux Version8.0
Opensuse ≫ Leap Version15.0
Opensuse ≫ Leap Version42.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 3.44% 0.874
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
secalert@redhat.com 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
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
Mailing List
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/
Third Party Advisory
https://www.debian.org/security/2019/dsa-4431
https://access.redhat.com/errata/RHSA-2019:0679
Third Party Advisory
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-2019-3863
Patch
Third Party Advisory
Issue Tracking
https://www.libssh2.org/CVE-2019-3863.html
Patch
Vendor Advisory