RHEL 7 : libssh2 (RHSA-2019:1791)

high Nessus Plugin ID 126759

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Synopsis

The remote Red Hat host is missing one or more security updates for libssh2.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1791 advisory.

- libssh2: Integer overflow in transport read resulting in out of bounds write (CVE-2019-3855)

- libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write (CVE-2019-3856)

- libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write (CVE-2019-3857)

- libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes (CVE-2019-3863)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL libssh2 package based on the guidance in RHSA-2019:1791.

Plugin Details

Severity: High

ID: 126759

File Name: redhat-RHSA-2019-1791.nasl

Version: 1.6

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/17/2019

Updated: 4/28/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-3855

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2019-3863

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libssh2, p-cpe:/a:redhat:enterprise_linux:libssh2-devel, p-cpe:/a:redhat:enterprise_linux:libssh2-docs, cpe:/o:redhat:rhel_eus:7.5

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/16/2019

Vulnerability Publication Date: 3/21/2019

Reference Information

CVE: CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3863

CWE: 787

RHSA: 2019:1791

Detections

Analytics