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RHEL 6 / 7 : libgcrypt (RHSA-2016:2674)

medium Nessus Plugin ID 94626

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Synopsis

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

Description

An update for libgcrypt is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libgcrypt library provides general-purpose implementations of various cryptographic algorithms.

Security Fix(es) :

* A design flaw was found in the libgcrypt PRNG (Pseudo-Random Number Generator). An attacker able to obtain the first 580 bytes of the PRNG output could predict the following 20 bytes. (CVE-2016-6313)

Red Hat would like to thank Felix Dorre and Vladimir Klebanov for reporting this issue.

Solution

Update the affected libgcrypt, libgcrypt-debuginfo and / or libgcrypt-devel packages.

See Also

https://access.redhat.com/errata/RHSA-2016:2674

https://access.redhat.com/security/cve/cve-2016-6313

Plugin Details

Severity: Medium

ID: 94626

File Name: redhat-RHSA-2016-2674.nasl

Version: 2.12

Type: local

Agent: unix

Published: 11/8/2016

Updated: 10/24/2019

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libgcrypt, p-cpe:/a:redhat:enterprise_linux:libgcrypt-debuginfo, p-cpe:/a:redhat:enterprise_linux:libgcrypt-devel, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.3, cpe:/o:redhat:enterprise_linux:7.4, cpe:/o:redhat:enterprise_linux:7.5, cpe:/o:redhat:enterprise_linux:7.6, cpe:/o:redhat:enterprise_linux:7.7

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: 11/8/2016

Vulnerability Publication Date: 12/13/2016

Reference Information

CVE: CVE-2016-6313

RHSA: 2016:2674