Bug 1962595 (CVE-2021-31806)

Summary: CVE-2021-31806 squid: improper input validation in HTTP Range header
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: anon.amish, code, icesalov, jonathansteffan, luhliari, mcascell, naresh.sukhija_ext
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: squid 4.15, squid 5.0.6 Doc Type: If docs needed, set a value
Doc Text:
An incorrect input validation flaw was found in Squid, where it is vulnerable to a denial of service attack against all clients using the proxy. The highest threat from this vulnerability is to system availability.
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-11-09 18:55:15 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1962596, 1963385, 1963386    
Bug Blocks: 1959539    

Description Marian Rehak 2021-05-20 10:43:10 UTC
Due to an incorrect input validation bug Squid is vulnerable to a Denial of Service attack against all clients using the proxy.

External Reference:


Comment 1 Marian Rehak 2021-05-20 10:43:36 UTC
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1962596]

Comment 6 errata-xmlrpc 2021-11-09 18:05:59 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4292 https://access.redhat.com/errata/RHSA-2021:4292

Comment 7 Product Security DevOps Team 2021-11-09 18:55:13 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):