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ubuntucveUbuntu.comUB:CVE-2019-3856
HistoryMar 25, 2019 - 12:00 a.m.

CVE-2019-3856

2019-03-2500:00:00
ubuntu.com
ubuntu.com
16

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

71.0%

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibssh2< anyUNKNOWN
ubuntu14.04noarchlibssh2< 1.4.3-2ubuntu0.2+esm2UNKNOWN
ubuntu16.04noarchlibssh2< 1.5.0-2ubuntu0.1+esm1UNKNOWN

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

71.0%