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RHEL 7 : rh-varnish6-varnish (RHSA-2021:2993)
medium Nessus Plugin ID 152347
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Synopsis
The remote Red Hat host is missing a security update for rh-varnish6-varnish.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:2993 advisory.Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up.
The following packages have been upgraded to a later upstream version: rh-varnish6-varnish (6.0.8).
Security Fix(es):
* varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request (CVE-2021-36740)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
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 RHEL rh-varnish6-varnish package based on the guidance in RHSA-2021:2993.See Also
http://www.nessus.org/u?32263a48
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: Medium
ID: 152347
File Name: redhat-RHSA-2021-2993.nasl
Version: 1.8
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 8/9/2021
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 2.5
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2021-36740
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:rh-varnish6-varnish-modules, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:rh-varnish6-varnish-libs, p-cpe:/a:redhat:enterprise_linux:rh-varnish6-varnish-devel, p-cpe:/a:redhat:enterprise_linux:rh-varnish6-varnish, p-cpe:/a:redhat:enterprise_linux:rh-varnish6-varnish-docs
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: 8/3/2021
Vulnerability Publication Date: 7/14/2021
Reference Information
CVE: CVE-2021-36740