Detections
Analytics
CentOS 8 : varnish:6 (CESA-2020:4756)
high Nessus Plugin ID 145911
Language:
Synopsis
The remote CentOS host is missing one or more security updates.Description
The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4756 advisory.- varnish: denial of service handling certain crafted HTTP/1 requests (CVE-2019-15892)
- varnish: not clearing pointer between two client requests leads to information disclosure (CVE-2019-20637)
- varnish: remote clients may cause Varnish to assert and restart which could result in DoS (CVE-2020-11653)
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 affected packages.See Also
Plugin Details
Severity: High
ID: 145911
File Name: centos8_RHSA-2020-4756.nasl
Version: 1.5
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 2/1/2021
Updated: 2/8/2023
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
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 Score Source: CVE-2019-20637
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:varnish, p-cpe:/a:centos:centos:varnish-docs, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:varnish-devel, p-cpe:/a:centos:centos:varnish-modules
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 11/4/2020
Vulnerability Publication Date: 9/3/2019
Reference Information
CVE: CVE-2019-15892, CVE-2019-20637, CVE-2020-11653
RHSA: 2020:4756