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Fencer Intel
medium 6.3

CVE-2016-0763 json

Improper Verification of Source of a Communication Channel in Apache Tomcat

published 2016-02-25 10 y ago modified 2026-10-15 25 d ago also GHSA-9hjv-9h75-xmpp , EUVD-2022-3390

cvss
6.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.3%
EPSS 11.3% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

The setGlobalContext method in org/apache/naming/factory/ResourceLinkFactory.java in Apache Tomcat 7.x before 7.0.68, 8.x before 8.0.31, and 9.x before 9.0.0.M3 does not consider whether ResourceLinkFactory.setGlobalContext callers are authorized, which allows remote authenticated users to bypass intended SecurityManager restrictions and read or write to arbitrary application data, or cause a denial of service (application disruption), via a web application that sets a crafted global context.

Patch / fix

  • maven org.apache.tomcat:tomcat 7.0.68, 8.0.32, 9.0.0.M3
  • tomcat6 Ubuntu 14.04 LTS 6.0.39-1ubuntu0.1
  • tomcat6 Ubuntu 16.04 LTS 6.0.45+dfsg-1
  • tomcat7 Ubuntu 14.04 LTS 7.0.52-1ubuntu0.6

ubuntu advisories UBUNTU-CVE-2016-0763

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • tomcat RHEL 7 7.0.69-10.el7
  • tomcat-lib RHEL 7 7.0.69-10.el7
  • tomcat-jsvc RHEL 7 7.0.69-10.el7
  • tomcat-javadoc RHEL 7 7.0.69-10.el7
  • tomcat-webapps RHEL 7 7.0.69-10.el7
  • tomcat-el-2.2-api RHEL 7 7.0.69-10.el7
  • tomcat-docs-webapp RHEL 7 7.0.69-10.el7
  • tomcat-jsp-2.2-api RHEL 7 7.0.69-10.el7

red hat advisories RHSA-2016:2599RHSA-2016:2807RHSA-2016:1088RHSA-2016:1087

  • tomcat SLES for SAP 12, SLES 12 7.0.68-7.6.1
  • tomcat SLES for SAP 12 SP1, SLES 12 SP1 8.0.32-3.1

suse advisories SUSE-SU-2016:0822-1SUSE-SU-2016:0769-1

  • tomcat openSUSE Tumbleweed 8.0.36-3.3
  • tomcat10 openSUSE Tumbleweed 10.1.14-1.1

opensuse advisories openSUSE-SU-2024:10446-1openSUSE-SU-2024:13441-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-0763 updated cvss 6.3

tomcat: security manager bypass via setGlobalContext()

  • Red Hat JBoss BRMS 5 jbossweb jbossweb
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Data Grid 6 jbossweb jbossweb
    affected: no fix available
  • Red Hat JBoss Enterprise Application Platform 4 jbossweb jbossweb Red Hat JBoss Enterprise Application Platform 5 jbossweb jbossweb Red Hat JBoss Enterprise Application Platform 6 jbossweb jbossweb Red Hat JBoss Fuse Service Works 6 jbossweb jbossweb
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Operations Network 3 jbossweb jbossweb Red Hat JBoss Portal 6 jbossweb jbossweb
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) tomcat 7.0.69-10.el7, tomcat-servlet-3.0-api 7.0.69-10.el7 Red Hat Enterprise Linux Client Optional (v. 7) tomcat 7.0.69-10.el7, tomcat-lib 7.0.69-10.el7, tomcat-jsvc 7.0.69-10.el7, tomcat-javadoc 7.0.69-10.el7, tomcat-webapps 7.0.69-10.el7, tomcat-el-2.2-api 7.0.69-10.el7, +3 more Red Hat Enterprise Linux ComputeNode (v. 7) tomcat 7.0.69-10.el7, tomcat-servlet-3.0-api 7.0.69-10.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) tomcat 7.0.69-10.el7, tomcat-lib 7.0.69-10.el7, tomcat-jsvc 7.0.69-10.el7, tomcat-javadoc 7.0.69-10.el7, tomcat-webapps 7.0.69-10.el7, tomcat-el-2.2-api 7.0.69-10.el7, +3 more Red Hat Enterprise Linux Server (v. 7) tomcat 7.0.69-10.el7, tomcat-lib 7.0.69-10.el7, tomcat-webapps 7.0.69-10.el7, tomcat-el-2.2-api 7.0.69-10.el7, tomcat-jsp-2.2-api 7.0.69-10.el7, tomcat-admin-webapps 7.0.69-10.el7, +1 more Red Hat Enterprise Linux Server Optional (v. 7) tomcat 7.0.69-10.el7, tomcat-lib 7.0.69-10.el7, tomcat-jsvc 7.0.69-10.el7, tomcat-javadoc 7.0.69-10.el7, tomcat-webapps 7.0.69-10.el7, tomcat-el-2.2-api 7.0.69-10.el7, +3 more
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) tomcat 7.0.69-10.el7, tomcat-lib 7.0.69-10.el7, tomcat-webapps 7.0.69-10.el7, tomcat-el-2.2-api 7.0.69-10.el7, tomcat-jsp-2.2-api 7.0.69-10.el7, tomcat-admin-webapps 7.0.69-10.el7, +1 more Red Hat Enterprise Linux Workstation Optional (v. 7) tomcat-jsvc 7.0.69-10.el7, tomcat-javadoc 7.0.69-10.el7, tomcat-docs-webapp 7.0.69-10.el7
    fixed: vendor fix RHSA-2016:2599
  • Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server tomcat7 7.0.54-23_patch_05.ep6.el6, tomcat7-lib 7.0.54-23_patch_05.ep6.el6, tomcat7-log4j 7.0.54-23_patch_05.ep6.el6, tomcat7-javadoc 7.0.54-23_patch_05.ep6.el6, tomcat7-webapps 7.0.54-23_patch_05.ep6.el6, tomcat7-el-2.2-api 7.0.54-23_patch_05.ep6.el6, +4 more Red Hat JBoss Enterprise Web Server 2 for RHEL 7 Server tomcat7 7.0.54-23_patch_05.ep6.el7, tomcat7-lib 7.0.54-23_patch_05.ep6.el7, tomcat7-log4j 7.0.54-23_patch_05.ep6.el7, tomcat7-javadoc 7.0.54-23_patch_05.ep6.el7, tomcat7-webapps 7.0.54-23_patch_05.ep6.el7, tomcat7-el-2.2-api 7.0.54-23_patch_05.ep6.el7, +4 more
    fixed: vendor fix RHSA-2016:2807
  • Red Hat JBoss Web Server 2.1
    fixed: vendor fix RHSA-2016:2808
  • Red Hat JBoss Web Server 3.0
    fixed: vendor fix RHSA-2016:1089
show 3 more
  • Red Hat JBoss Web Server 3.0 for RHEL 6 httpd24 2.4.6-61.ep7.el6, mod_ssl24 2.4.6-61.ep7.el6, mod_ldap24 2.4.6-61.ep7.el6, httpd24-tools 2.4.6-61.ep7.el6, mod_session24 2.4.6-61.ep7.el6, httpd24-manual 2.4.6-61.ep7.el6, +22 more
    fixed: vendor fix RHSA-2016:1087
  • Red Hat JBoss Web Server 3.0 for RHEL 7 httpd24 2.4.6-61.ep7.el7, mod_ssl24 2.4.6-61.ep7.el7, mod_ldap24 2.4.6-61.ep7.el7, httpd24-tools 2.4.6-61.ep7.el7, mod_session24 2.4.6-61.ep7.el7, httpd24-manual 2.4.6-61.ep7.el7, +22 more
    fixed: vendor fix RHSA-2016:1088
  • Red Hat Enterprise Linux 6 tomcat6, tomcat6-lib, tomcat6-log4j, tomcat6-javadoc, tomcat6-webapps, tomcat6-el-2.1-api, +4 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
25 d ago

Exploit prediction

11.30% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected packages

ecosystem package affected fixed in
maven org.apache.tomcat:tomcat
>=7.0.0, <7.0.68
>=8.0.0, <8.0.32
>=9.0.0M1, <9.0.0.M3
7.0.68
8.0.32
9.0.0.M3

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
  • CWE-940 Improper Verification of Source of a Communication Channel

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.