Bug 1962597 (CVE-2021-31807) - CVE-2021-31807 squid: incorrect memory management in HTTP Range header
Summary: CVE-2021-31807 squid: incorrect memory management in HTTP Range header
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-31807
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1962598 1963387 1963388
Blocks: 1959539
TreeView+ depends on / blocked
 
Reported: 2021-05-20 10:43 UTC by Marian Rehak
Modified: 2022-04-17 21:24 UTC (History)
7 users (show)

Fixed In Version: squid 4.15, squid 5.0.6
Doc Type: If docs needed, set a value
Doc Text:
An incorrect memory management 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.
Clone Of:
Environment:
Last Closed: 2021-11-09 19:21:06 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4292 0 None None None 2021-11-09 18:06:04 UTC

Description Marian Rehak 2021-05-20 10:43:47 UTC 
Due to an incorrect memory management bug Squid is vulnerable to a Denial of Service attack against all clients using the proxy.

External Reference:

https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
Comment 1 Marian Rehak 2021-05-20 10:44:14 UTC 
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1962598]
Comment 3 Mauro Matteo Cascella 2021-05-24 07:53:14 UTC 
Upstream pull request:
https://github.com/squid-cache/squid/pull/790

Upstream commits:
https://github.com/squid-cache/squid/commit/7024fb734a59409889e53df2257b3fc817809fb4 [master]
https://github.com/squid-cache/squid/commit/6bf66733c122804fada7f5839ef5f3b57e57591c [v5]
https://github.com/squid-cache/squid/commit/e7cf864f938f24eea8af0692c04d16790983c823 [v4]
Comment 6 errata-xmlrpc 2021-11-09 18:06:03 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 19:21:04 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-2021-31807
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