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 bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1400-1, DSA-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)jessie7.0.56-3+deb8u11vulnerable
jessie (security)7.0.56-3+really7.0.88-2fixed
stretch7.0.75-1fixed
buster, sid7.0.78-1fixed
tomcat8 (PTS)jessie (security), jessie8.0.14-1+deb8u11fixed
stretch (security), stretch8.5.14-1+deb9u2fixed
buster, sid8.5.32-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat7source(unstable)7.0.72-3medium
tomcat7sourcejessie7.0.56-3+really7.0.88-1mediumDLA-1400-1
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

[wheezy] - tomcat7 <not-affected> (Vulnerable code not present)
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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