CVE-2017-7674

NameCVE-2017-7674
DescriptionThe CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin. This permitted client and server side cache poisoning in some circumstances.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3974-1
NVD severitymedium (attack range: remote)
Debian Bugs802312

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tomcat7 (PTS)wheezy7.0.28-4+deb7u4fixed
wheezy (security)7.0.28-4+deb7u14fixed
jessie (security), jessie7.0.56-3+deb8u11vulnerable
stretch7.0.75-1fixed
buster, sid7.0.78-1fixed
tomcat8 (PTS)jessie8.0.14-1+deb8u10vulnerable
jessie (security)8.0.14-1+deb8u11fixed
stretch8.5.14-1+deb9u1vulnerable
stretch (security)8.5.14-1+deb9u2fixed
buster8.5.16-1fixed
sid8.5.21-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat7source(unstable)7.0.72-3medium
tomcat7sourcewheezy(not affected)
tomcat8source(unstable)8.5.16-1medium
tomcat8sourcejessie8.0.14-1+deb8u11mediumDSA-3974-1
tomcat8sourcestretch8.5.14-1+deb9u2mediumDSA-3974-1
tomcat9ITP802312

Notes

[jessie] - tomcat7 <postponed> (Can be fixed along in a future update)
[wheezy] - tomcat7 <not-affected> (Vulnerable code not present)
NOTE: Since 7.0.72-3, src:tomcat7 only builds the Servlet API
Fixed by: http://svn.apache.org/r1795814 (8.5.x)
Fixed by: http://svn.apache.org/r1795815 (8.0.x)
Fixed by: http://svn.apache.org/r1795816 (7.0.x)
https://bz.apache.org/bugzilla/show_bug.cgi?id=61101

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