CWE
119 787
Advisory Published
CVE Published
Updated

CVE-2016-5270: Buffer Overflow

First published: Tue Sep 20 2016(Updated: )

An out-of-bounds write of a boolean value during text conversion with some unicode characters

Credit: security@mozilla.org security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Firefox<49
49
Thunderbird<45.4
45.4
Firefox<=48.0.2
Firefox=45.1.0
Firefox=45.1.1
Firefox=45.2.0
Firefox=45.3.0
Firefox ESR=45.1.0
Firefox ESR=45.1.1
Firefox ESR=45.2.0
Firefox ESR=45.3.0
Firefox ESR<45.4
45.4
debian/firefox
136.0-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.8.0esr-1~deb11u1
128.5.0esr-1~deb12u1
128.8.0esr-1~deb12u1
128.8.0esr-1

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2016-5270?

    CVE-2016-5270 is a vulnerability in Mozilla Firefox, Firefox ESR, and Thunderbird that allows remote attackers to cause a denial of service or possibly have unspecified other impact.

  • What is the severity of CVE-2016-5270?

    The severity of CVE-2016-5270 is critical (9.8).

  • How does CVE-2016-5270 affect Mozilla Firefox and Thunderbird?

    CVE-2016-5270 affects Mozilla Firefox versions before 49.0, Firefox ESR versions before 45.4, and Thunderbird versions before 45.4.

  • How can I fix CVE-2016-5270?

    To fix CVE-2016-5270, update to Mozilla Firefox version 49.0 or later, Firefox ESR version 45.4 or later, or Thunderbird version 45.4 or later.

  • Where can I find more information about CVE-2016-5270?

    You can find more information about CVE-2016-5270 on the following references: - [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1291016) - [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2016-85/) - [Red Hat Security Advisory](http://rhn.redhat.com/errata/RHSA-2016-1912.html)

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