Oracle Linux 8 : gnupg2 (ELSA-2020-4490)

Medium Nessus Plugin ID 142814

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VPR Score: 4.4

Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-4490 advisory.

- Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack. (CVE-2019-13050)

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

Solution

Update the affected gnupg2 and / or gnupg2-smime packages.

See Also

https://linux.oracle.com/errata/ELSA-2020-4490.html

Plugin Details

Severity: Medium

ID: 142814

File Name: oraclelinux_ELSA-2020-4490.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/11/12

Updated: 2020/11/13

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 4.4

CVSS Score Source: CVE-2019-13050

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:gnupg2, p-cpe:/a:oracle:linux:gnupg2-smime

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/11/10

Vulnerability Publication Date: 2019/06/29

Reference Information

CVE: CVE-2019-13050