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CVE-2016-0763

Publication date 24 February 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.3 · Medium

Score breakdown

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.

From the Ubuntu Security Team

It was discovered that the Tomcat setGlobalContext method incorrectly checked if callers were authorized. A remote attacker could possibly use this issue to read or wite to arbitrary application data, or cause a denial of service.

Status

Package Ubuntu Release Status
tomcat6 18.04 LTS bionic Not in release
17.10 artful Not in release
17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial
Fixed 6.0.45+dfsg-1
15.10 wily Ignored end of life
14.04 LTS trusty
Fixed 6.0.39-1ubuntu0.1
12.04 LTS precise
Fixed 6.0.35-1ubuntu3.7
tomcat7 18.04 LTS bionic
Not affected
17.10 artful
Not affected
17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
15.10 wily
Fixed 7.0.64-1ubuntu0.3
14.04 LTS trusty
Fixed 7.0.52-1ubuntu0.6
12.04 LTS precise Ignored end of life
tomcat8 18.04 LTS bionic
Not affected
17.10 artful
Not affected
17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
15.10 wily Ignored end of life
14.04 LTS trusty Not in release
12.04 LTS precise Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
tomcat6
tomcat7
tomcat8

Severity score breakdown

Parameter Value
Base score 6.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact Low
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

Related Ubuntu Security Notices (USN)

Other references