CVE-2015-0832

Impact:
Moderate
Public Date:
2015-02-24
Bugzilla:
1195610: CVE-2015-0832 Mozilla: Appended period to hostnames can bypass HPKP and HSTS protections (MFSA 2015-13)

The MITRE CVE dictionary describes this issue as:

Mozilla Firefox before 36.0 does not properly recognize the equivalence of domain names with and without a trailing . (dot) character, which allows man-in-the-middle attackers to bypass the HPKP and HSTS protection mechanisms by constructing a URL with this character and leveraging access to an X.509 certificate for a domain with this character.

Find out more about CVE-2015-0832 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 firefox Not affected
Red Hat Enterprise Linux 6 firefox Not affected
Red Hat Enterprise Linux 6 thunderbird Not affected
Red Hat Enterprise Linux 5 firefox Not affected
Red Hat Enterprise Linux 5 thunderbird Not affected

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Muneaki Nishimura as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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