CVE-2016-2161: Input Validation

Published Dec 20, 2016
·
Updated

apache. Multiple issues existed in Apache. These were addressed by updating Apache to version 2.4.25.

Other sources

apache. Multiple issues were addressed by updating to version 2.4.27.

In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to modauthdigest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.

— MITRE

It was found that malicious input to modauthdigest will cause the server to crash, and each instance continues to crash even for subsequently valid requests.

Affects versions 2.4.x up to 2.4.23

External Reference:

https://httpd.apache.org/security/vulnerabilities24.html#2.4.25

— Red Hat

Credit

CVE-2016-0736, CVE-2016-2161, CVE-2016-5387, CVE-2016-8740, CVE-2016-8743, CVE-2017-3167, CVE-2017-3169, CVE-2017-7659, CVE-2017-7668, CVE-2017-7679, CVE-2017-9788, CVE-2017-9789

Affected Software

22 affected componentsFixes available
redhat/httpd<2.4.25
2.4.25
Apple macOS High Sierra<10.13
10.13
Apple macOS High Sierra<10.13.1
10.13.1
Apple Sierra
Apple El Capitan
Apache HTTP Server=2.4.0
Apache HTTP Server=2.4.1
Apache HTTP Server=2.4.2
Apache HTTP Server=2.4.3
Apache HTTP Server=2.4.6
Apache HTTP Server=2.4.7
Apache HTTP Server=2.4.8
Apache HTTP Server=2.4.9
Apache HTTP Server=2.4.10
Apache HTTP Server=2.4.12
Apache HTTP Server=2.4.14
Apache HTTP Server=2.4.16
Apache HTTP Server=2.4.19
Apache HTTP Server=2.4.20
Apache HTTP Server=2.4.21
Apache HTTP Server=2.4.22
Apache HTTP Server=2.4.23

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade macOS High Sierra to a version that resolves this vulnerability.

    Fixed in 10.13
  2. Upgrade

    Upgrade macOS High Sierra to a version that resolves this vulnerability.

    Fixed in 10.13.1
  3. Upgrade

    Upgrade redhat/httpd to a version that resolves this vulnerability.

    Fixed in 2.4.25
  4. Upgrade

    Upgrade Apache HTTP Server to a version that resolves this vulnerability.

    Fixed in 2.4.25

Event History

Dec 21, 2016
Data Sourced
via Red Hat·12:09 PM
DescriptionSeverityAffected Software
Jul 27, 2017
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2016-2161?

CVE-2016-2161 is a vulnerability in Apache HTTP Server that allows malicious input to cause the server to crash.

2

How severe is CVE-2016-2161?

CVE-2016-2161 has a severity rating of 7.5 (high).

3

Which versions of Apache HTTP Server are affected by CVE-2016-2161?

Versions 2.4.0 to 2.4.23 of Apache HTTP Server are affected by CVE-2016-2161.

4

How do I fix CVE-2016-2161?

To fix CVE-2016-2161, update Apache HTTP Server to version 2.4.25 or later.

5

Where can I find more information about CVE-2016-2161?

You can find more information about CVE-2016-2161 on the Apache HTTP Server website and the Red Hat Bugzilla page.

Company

Resources

Contact

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