Bug 1798552 (CVE-2020-8450)

Summary: CVE-2020-8450 squid: Buffer overflow in reverse-proxy configurations
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akarimi, anon.amish, code, janarula, jonathansteffan, luhliari, rcarrier, simore, tcrider, uwe.knop, yozone
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: squid 4.10 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in squid. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-09-30 09:57:19 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: 1798554, 1802513, 1802515, 1836853    
Bug Blocks: 1798558    

Comment 1 Pedro Sampaio 2020-02-05 15:15:18 UTC
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1798554]

Comment 2 Stefan Cornelius 2020-02-13 10:15:10 UTC

Although the squid packages for Red Hat Enterprise Linux 6 through 8 are affected, they are compiled with FORTIFY_SOURCE, which in this case limits the impact of the buffer overflow to an application termination. This only affects deployments acting as reverse proxy with a http_port 'accel' or 'vhost' (squid 2.x and 3.x) or http_port 'accel' configuration (squid 4.x).

Comment 10 errata-xmlrpc 2020-09-30 07:01:02 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4082 https://access.redhat.com/errata/RHSA-2020:4082

Comment 11 Product Security DevOps Team 2020-09-30 09:57:19 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


Comment 12 errata-xmlrpc 2020-11-04 03:31:55 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4743 https://access.redhat.com/errata/RHSA-2020:4743