Bug 1770349 (CVE-2019-18678) - CVE-2019-18678 squid: HTTP Request Splitting issue in HTTP message processing
Summary: CVE-2019-18678 squid: HTTP Request Splitting issue in HTTP message processing
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-18678
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: 1770350 1771287 1771288
Blocks: 1770351
TreeView+ depends on / blocked
 
Reported: 2019-11-08 19:42 UTC by Pedro Sampaio
Modified: 2023-10-06 18:45 UTC (History)
6 users (show)

Fixed In Version: squid 4.9
Clone Of:
Environment:
Last Closed: 2020-11-04 02:22:57 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4743 0 None None None 2020-11-04 03:31:17 UTC

Description Pedro Sampaio 2019-11-08 19:42:29 UTC 
Due to incorrect message parsing Squid is vulnerable to an HTTP request splitting issue. This issue allows attackers to smuggle HTTP requests through frontend software to a Squid which splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches between client and Squid with attacker controlled content at arbitrary URLs.

References:

http://www.squid-cache.org/Advisories/SQUID-2019_10.txt
Comment 1 Pedro Sampaio 2019-11-08 19:42:43 UTC 
Created squid tracking bugs for this issue:

Affects: fedora-all [bug 1770350]
Comment 2 Huzaifa S. Sidhpurwala 2019-11-12 06:10:09 UTC 
Upstream patch: http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch
Comment 3 Huzaifa S. Sidhpurwala 2019-11-12 06:10:13 UTC 
External References:

http://www.squid-cache.org/Advisories/SQUID-2019_10.txt
Comment 6 Serhii Zashchelkin 2020-01-22 13:37:29 UTC 
Hi

Could anyone please clarify, whether a patch for Squid V3 will be released for this issue?

Thanks,
Serhii
Comment 7 Product Security DevOps Team 2020-11-04 02:22:57 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-2019-18678
Comment 8 errata-xmlrpc 2020-11-04 03:31:13 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
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