9.3

CVE-2019-3855

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. 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.

Data is provided by the National Vulnerability Database (NVD)
Libssh2Libssh2 Version < 1.8.1
FedoraprojectFedora Version28
FedoraprojectFedora Version29
FedoraprojectFedora Version30
DebianDebian Linux Version8.0
DebianDebian Linux Version9.0
RedhatEnterprise Linux Version8.0 SwEditionadvanced_virtualization
OpensuseLeap Version42.3
AppleXCode Version < 11.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 8.94% 0.923
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 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
nvd@nist.gov 9.3 8.6 10
AV:N/AC:M/Au:N/C:C/I:C/A:C
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.

http://www.openwall.com/lists/oss-security/2019/03/18/3
Patch
Third Party Advisory
Mailing List
http://www.securityfocus.com/bid/107485
Third Party Advisory
VDB Entry
https://seclists.org/bugtraq/2019/Apr/25
Third Party Advisory
Mailing List
https://seclists.org/bugtraq/2019/Mar/25
Third Party Advisory
Mailing List
http://seclists.org/fulldisclosure/2019/Sep/42
Third Party Advisory
Mailing List
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3855
Patch
Third Party Advisory
Issue Tracking
https://seclists.org/bugtraq/2019/Sep/49
Third Party Advisory
Mailing List