7.5
CWE
20
Advisory Published
Updated

CVE-2017-5449: Input Validation

First published: Wed Apr 19 2017(Updated: )

A possibly exploitable crash triggered during layout and manipulation of bidirectional unicode text in concert with CSS animations.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Thunderbird<52.1
52.1
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Firefox ESR<52.1.0
Thunderbird<52.1.0
Firefox<53.0
Firefox<53
53
Firefox ESR<52.1
52.1
debian/firefox
137.0-1

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2017-5449?

    CVE-2017-5449 has been classified as a low severity vulnerability that may lead to a crash.

  • How do I fix CVE-2017-5449?

    To fix CVE-2017-5449, upgrade to Mozilla Thunderbird 52.2, Firefox ESR 52.2, or Firefox 53 or later.

  • What systems are affected by CVE-2017-5449?

    CVE-2017-5449 affects Mozilla Thunderbird versions prior to 52.2, Firefox ESR versions prior to 52.2, and Firefox versions prior to 53.

  • Can CVE-2017-5449 be exploited remotely?

    CVE-2017-5449 involves a crash that could potentially be exploited through malicious web content.

  • Is CVE-2017-5449 specific to certain operating systems?

    CVE-2017-5449 can affect multiple operating systems that run the vulnerable versions of Mozilla Thunderbird or Firefox.

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