Fedora 29 : libssh2 (2019-f31c14682f)

high Nessus Plugin ID 123052

Language:

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 Fedora host is missing a security update.

Description

This update addresses various overflow conditions that could result in possible memory read/write out of bounds errors or zero byte allocations when connected to a malicious server.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libssh2 package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2019-f31c14682f

Plugin Details

Severity: High

ID: 123052

File Name: fedora_2019-f31c14682f.nasl

Version: 1.4

Type: local

Agent: unix

Published: 3/25/2019

Updated: 2/3/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-3855

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:fedoraproject:fedora:libssh2, cpe:/o:fedoraproject:fedora:29

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/23/2019

Vulnerability Publication Date: 3/21/2019

Reference Information

CVE: CVE-2019-3855, CVE-2019-3856, CVE-2019-3857, CVE-2019-3858, CVE-2019-3859, CVE-2019-3860, CVE-2019-3861, CVE-2019-3862, CVE-2019-3863