Bug 2100721 (CVE-2021-46784)

Summary:	CVE-2021-46784 squid: DoS when processing gopher server responses
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anon.amish, code, jonathansteffan, luhliari, nonamedotc
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	squid 5.6	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in squid (Web proxy cache server). This issue occurs due to improper buffer management while processing Gopher server responses. This flaw leads to a remote denial of service or a crash if it receives specially crafted network traffic, either by mistake or a malicious actor.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-08-29 19:33:15 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2100730, 2100729, 2100731, 2100778, 2100779, 2100780, 2100781, 2100782, 2100783, 2100784, 2100785
Bug Blocks:	2100722

Description TEJ RATHI 2022-06-24 05:21:56 UTC

A vulnerability was found in squid. Due to improper buffer management Squid is vulnerable to a Denial of Service attack when processing Gopher server responses.

The issue is fixed upstream in 5.6.

References:
https://github.com/squid-cache/squid/security/advisories/GHSA-f5cp-6rh3-284w

Comment 1 Sandipan Roy 2022-06-24 05:59:12 UTC

Created clustal-omega tracking bugs for this issue:

Affects: epel-all [bug 2100730]
Affects: fedora-all [bug 2100729]


Created squid tracking bugs for this issue:

Affects: fedora-all [bug 2100731]

Comment 2 Sandipan Roy 2022-06-24 09:07:59 UTC

Upstream patch: https://github.com/squid-cache/squid/commit/780c4ea1b4c9d2fb41f6962aa6ed73ae57f74b2b

Comment 3 Sandipan Roy 2022-06-24 09:11:51 UTC

https://github.com/squid-cache/squid/pull/1022

Comment 6 errata-xmlrpc 2022-07-07 10:57:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2022:5530 https://access.redhat.com/errata/RHSA-2022:5530

Comment 7 errata-xmlrpc 2022-07-07 11:29:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2022:5527 https://access.redhat.com/errata/RHSA-2022:5527

Comment 8 errata-xmlrpc 2022-07-07 11:42:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2022:5529 https://access.redhat.com/errata/RHSA-2022:5529

Comment 9 errata-xmlrpc 2022-07-07 11:47:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support

Via RHSA-2022:5528 https://access.redhat.com/errata/RHSA-2022:5528

Comment 10 errata-xmlrpc 2022-07-07 11:52:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:5526 https://access.redhat.com/errata/RHSA-2022:5526

Comment 11 errata-xmlrpc 2022-07-11 11:15:16 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:5542 https://access.redhat.com/errata/RHSA-2022:5542

Comment 12 Product Security DevOps Team 2022-08-29 19:33:13 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-46784