Bug 2243749 (CVE-2023-45648)

Summary:	CVE-2023-45648 tomcat: incorrectly parsed http trailer headers can cause request smuggling
Product:	[Other] Security Response	Reporter:	Anten Skrabec <askrabec>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	adupliak, aileenc, anstephe, aogburn, asoldano, ataylor, avibelli, bbaranow, bgeorges, bmaxwell, boliveir, brian.stansberry, cdewolf, chazlett, chfoley, cmiranda, csutherl, darran.lofthouse, dhanak, dkreling, dosoudil, drichtar, fjuma, fmariani, gmalinko, ibek, ivassile, iweiss, janstey, jclere, jpoth, jrokos, jross, jscholz, kverlaen, kyoshida, lgao, lthon, mmadzin, mnovotny, mosmerov, msochure, mstefank, msvehla, mulliken, nwallace, owatkins, pcongius, pdelbell, pdrozd, peholase, pgallagh, pjindal, pmackay, pskopek, rguimara, rkieley, rowaters, rruss, rstancel, saroy, sdawley, smaestri, sthorger, swoodman, szappis, tcunning, tom.jenkinson, yfang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	tomcat 11.0.0-M12, tomcat 10.1.14, tomcat 9.0.81, tomcat 8.5.94	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in Apache Tomcat, where an improper input validation can occur. This flaw allows a malicious user to send a crafted request containing an invalid trailer header, which could be treated as multiple requests, potentially leading to request smuggling when behind a reverse proxy.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2244528, 2245764
Bug Blocks:	2243753

Description Anten Skrabec 2023-10-12 21:23:55 UTC

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially 
crafted, invalid trailer header could cause Tomcat to treat a single 
request as multiple requests leading to the possibility of request 
smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.



https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
http://www.openwall.com/lists/oss-security/2023/10/10/10
https://www.debian.org/security/2023/dsa-5522
https://www.debian.org/security/2023/dsa-5521

Comment 2 Aaron Ogburn 2023-10-16 17:27:47 UTC

Can we please create JWS trackers for this?

Comment 4 Patrick Del Bello 2023-10-24 01:44:34 UTC

Created tomcat tracking bugs for this issue:

Affects: fedora-all [bug 2245764]

Comment 5 errata-xmlrpc 2023-10-31 13:05:40 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Web Server

Via RHSA-2023:6207 https://access.redhat.com/errata/RHSA-2023:6207

Comment 6 errata-xmlrpc 2023-10-31 13:07:02 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Web Server 5.7 on RHEL 7
  Red Hat JBoss Web Server 5.7 on RHEL 8
  Red Hat JBoss Web Server 5.7 on RHEL 9

Via RHSA-2023:6206 https://access.redhat.com/errata/RHSA-2023:6206

Comment 7 errata-xmlrpc 2023-11-15 17:08:10 UTC

This issue has been addressed in the following products:

  Red Hat Fuse 7.12.1

Via RHSA-2023:7247 https://access.redhat.com/errata/RHSA-2023:7247

Comment 8 errata-xmlrpc 2024-01-10 11:27:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:0125 https://access.redhat.com/errata/RHSA-2024:0125

Comment 10 errata-xmlrpc 2024-01-24 16:31:39 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:0474 https://access.redhat.com/errata/RHSA-2024:0474