CVE-2016-0762

Publication date 28 October 2016

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.

Read the notes from the security team

Status

Package Ubuntu Release Status
tomcat6 20.04 LTS focal Not in release
18.10 cosmic Not in release
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-1ubuntu0.1
14.04 LTS trusty
Fixed 6.0.39-1ubuntu0.1
12.04 LTS precise
Fixed 6.0.35-1ubuntu3.9
tomcat7 20.04 LTS focal Not in release
18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful Ignored end of life
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Fixed 7.0.68-1ubuntu0.3
14.04 LTS trusty
Not affected
12.04 LTS precise Ignored end of life
tomcat8 20.04 LTS focal Not in release
18.10 cosmic
Not affected
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
Fixed 8.0.32-1ubuntu1.3
14.04 LTS trusty Not in release
12.04 LTS precise Not in release

Notes

mdeslaur

tomcat7 in trusty doesn't look vulnerable

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 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-3177-1
    • Tomcat vulnerabilities
    • 23 January 2017
    • USN-4557-1
    • Tomcat vulnerabilities
    • 30 September 2020

Other references