Scientific Linux Security Update : libssh2 on SL7.x x86_64 (20190328)

high Nessus Plugin ID 123489

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New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

 - 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)

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?704318ec

Plugin Details

Severity: High

ID: 123489

File Name: sl_20190328_libssh2_on_SL7_x.nasl

Version: 1.3

Type: local

Agent: unix

Published: 3/29/2019

Updated: 2/24/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:libssh2, p-cpe:/a:fermilab:scientific_linux:libssh2-debuginfo, p-cpe:/a:fermilab:scientific_linux:libssh2-devel, p-cpe:/a:fermilab:scientific_linux:libssh2-docs, x-cpe:/o:fermilab:scientific_linux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/28/2019

Vulnerability Publication Date: 3/21/2019

Reference Information

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