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AUSCERT External Security Bulletin Redistribution
ESB-2018.3201
Security update for tomcat
22 October 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: tomcat
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote with User Interaction
Unauthorised Access -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-11784 CVE-2018-8034 CVE-2018-8014
CVE-2018-1336 CVE-2018-1305 CVE-2018-1304
CVE-2017-15706
Reference: ASB-2018.0180
ESB-2018.3182
ESB-2018.3165
ESB-2018.3132
ESB-2018.3129
ESB-2018.2951
Original Bulletin:
https://www.suse.com/support/update/announcement/2018/suse-su-20183261-1.html
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SUSE Security Update: Security update for tomcat
______________________________________________________________________________
Announcement ID: SUSE-SU-2018:3261-1
Rating: moderate
References: #1078677 #1082480 #1082481 #1093697 #1102379
#1102400 #1110850
Cross-References: CVE-2017-15706 CVE-2018-11784 CVE-2018-1304
CVE-2018-1305 CVE-2018-1336 CVE-2018-8014
CVE-2018-8034
Affected Products:
SUSE Linux Enterprise Server 12-LTSS
______________________________________________________________________________
An update that fixes 7 vulnerabilities is now available.
Description:
This update for tomcat fixes the following issues:
Version update to 7.0.90:
- Another bugfix release, for full details see:
https://tomcat.apache.org/tomcat-7.0-doc/changelog.html
Security issues fixed:
- CVE-2018-11784: When the default servlet in Apache Tomcat returned a
redirect to a directory (e.g. redirecting to '/foo/' when the user
requested '/foo') a specially crafted URL could be used to cause the
redirect to be generated to any URI of the attackers choice.
(bsc#1110850)
- CVE-2017-15706: As part of the fix for bug 61201, the documentation for
Apache Tomcat included an updated description of the search algorithm
used by the CGI Servlet to identify which script to execute. The update
was not correct. As a result, some scripts may have failed to execute as
expected and other scripts may have been executed unexpectedly. Note
that the behaviour of the CGI servlet has remained unchanged in this
regard. It is only the documentation of the behaviour that was wrong and
has been corrected.(bsc#1078677)
- CVE-2018-1304: The URL pattern of \"\" (the empty string) which exactly
maps to the context root was not correctly handled in Apache Tomcat when
used as part of a security constraint definition. This caused the
constraint to be ignored. It was, therefore, possible for unauthorised
users to gain access to web application resources that should have been
protected. Only security constraints with a URL pattern of the empty
string were affected. (bsc#1082480)
- CVE-2018-1305: Security constraints defined by annotations of Servlets
in Apache Tomcat were only applied once a Servlet had been loaded.
Because security constraints defined in this way apply to the URL
pattern and any URLs below that point, it was possible - depending on
the order Servlets were loaded - for some security constraints not to be
applied. This could have exposed resources to users who were not
authorised to access them.(bsc#1082481)
- CVE-2018-1336: An improper handing of overflow in the UTF-8 decoder with
supplementary characters can lead to an infinite loop in the decoder
causing a Denial of Service. (bsc#1102400)
- CVE-2018-8014: Fixed default settings for the CORS filter, which were
insecure and enabled 'supportsCredentials' for all origins. (bsc#1093697)
- CVE-2018-8034: Fixed the host name verification when using TLS with the
WebSocket client, which was not enabled by default. (bsc#1102379)
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Server 12-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-2018-2339=1
Package List:
- SUSE Linux Enterprise Server 12-LTSS (noarch):
tomcat-7.0.90-7.23.1
tomcat-admin-webapps-7.0.90-7.23.1
tomcat-docs-webapp-7.0.90-7.23.1
tomcat-el-2_2-api-7.0.90-7.23.1
tomcat-javadoc-7.0.90-7.23.1
tomcat-jsp-2_2-api-7.0.90-7.23.1
tomcat-lib-7.0.90-7.23.1
tomcat-servlet-3_0-api-7.0.90-7.23.1
tomcat-webapps-7.0.90-7.23.1
References:
https://www.suse.com/security/cve/CVE-2017-15706.html
https://www.suse.com/security/cve/CVE-2018-11784.html
https://www.suse.com/security/cve/CVE-2018-1304.html
https://www.suse.com/security/cve/CVE-2018-1305.html
https://www.suse.com/security/cve/CVE-2018-1336.html
https://www.suse.com/security/cve/CVE-2018-8014.html
https://www.suse.com/security/cve/CVE-2018-8034.html
https://bugzilla.suse.com/1078677
https://bugzilla.suse.com/1082480
https://bugzilla.suse.com/1082481
https://bugzilla.suse.com/1093697
https://bugzilla.suse.com/1102379
https://bugzilla.suse.com/1102400
https://bugzilla.suse.com/1110850
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