CVE-2015-3455: Input Validation

Published May 18, 2015
·
Updated

Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.

Affected Software

73 affected components
Oracle Linux=7
Oracle Solaris=11.2
Squid-Cache Squid=3.2.0.1
Squid-Cache Squid=3.2.0.2
Squid-Cache Squid=3.2.0.3
Squid-Cache Squid=3.2.0.4
Squid-Cache Squid=3.2.0.5
Squid-Cache Squid=3.2.0.6
Squid-Cache Squid=3.2.0.7
Squid-Cache Squid=3.2.0.8
Squid-Cache Squid=3.2.0.9
Squid-Cache Squid=3.2.0.10
Squid-Cache Squid=3.2.0.11
Squid-Cache Squid=3.2.0.12
Squid-Cache Squid=3.2.0.13
Squid-Cache Squid=3.2.0.14
Squid-Cache Squid=3.2.0.15
Squid-Cache Squid=3.2.0.16
Squid-Cache Squid=3.2.0.17
Squid-Cache Squid=3.2.0.18
Squid-Cache Squid=3.2.0.19
Squid-Cache Squid=3.2.1
Squid-Cache Squid=3.2.2
Squid-Cache Squid=3.2.3
Squid-Cache Squid=3.2.4
Squid-Cache Squid=3.2.5
Squid-Cache Squid=3.2.6
Squid-Cache Squid=3.2.7
Squid-Cache Squid=3.2.8
Squid-Cache Squid=3.2.9
Squid-Cache Squid=3.2.10
Squid-Cache Squid=3.2.11
Squid-Cache Squid=3.2.12
Squid-Cache Squid=3.2.13
Squid-Cache Squid=3.3.0
Squid-Cache Squid=3.3.0.1
Squid-Cache Squid=3.3.0.2
Squid-Cache Squid=3.3.0.3
Squid-Cache Squid=3.3.1
Squid-Cache Squid=3.3.2
Squid-Cache Squid=3.3.3
Squid-Cache Squid=3.3.4
Squid-Cache Squid=3.3.5
Squid-Cache Squid=3.3.6
Squid-Cache Squid=3.3.7
Squid-Cache Squid=3.3.8
Squid-Cache Squid=3.3.9
Squid-Cache Squid=3.3.10
Squid-Cache Squid=3.3.11
Squid-Cache Squid=3.3.12
Squid-Cache Squid=3.3.13
Squid-Cache Squid=3.4.0.1
Squid-Cache Squid=3.4.0.2
Squid-Cache Squid=3.4.0.3
Squid-Cache Squid=3.4.1
Squid-Cache Squid=3.4.2
Squid-Cache Squid=3.4.3
Squid-Cache Squid=3.4.4
Squid-Cache Squid=3.4.5
Squid-Cache Squid=3.4.6
Squid-Cache Squid=3.4.7
Squid-Cache Squid=3.4.8
Squid-Cache Squid=3.4.9
Squid-Cache Squid=3.4.10
Squid-Cache Squid=3.4.11
Squid-Cache Squid=3.4.12
Squid-Cache Squid=3.5.0.1
Squid-Cache Squid=3.5.0.2
Squid-Cache Squid=3.5.0.3
Squid-Cache Squid=3.5.0.4
Squid-Cache Squid=3.5.1
Squid-Cache Squid=3.5.2
Fedoraproject Fedora=22

Event History

May 18, 2015
CVE Published
via MITRE·03:00 PM
Data Sourced
via MITRE·03:00 PM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2015-3455?

CVE-2015-3455 has a medium severity rating due to its potential to allow man-in-the-middle attacks by bypassing SSL certificate validation.

2

How do I fix CVE-2015-3455?

To mitigate CVE-2015-3455, you should upgrade to Squid version 3.2.14, 3.3.14, 3.4.13, or 3.5.4 or later.

3

What versions of Squid are affected by CVE-2015-3455?

CVE-2015-3455 affects Squid versions 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4.

4

Which configurations are vulnerable to CVE-2015-3455?

CVE-2015-3455 is specifically vulnerable when Squid is configured with client-first SSL-bump.

5

Can CVE-2015-3455 lead to data compromise?

Yes, CVE-2015-3455 can potentially lead to data compromise by allowing attackers to spoof SSL servers with valid certificates.

Company

Resources

Contact

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