critical
9.8
CWE
416
Advisory Published
Updated

CVE-2017-5442: Use After Free

First published: Wed Apr 19 2017(Updated: )

A use-after-free vulnerability during changes in style when manipulating DOM elements. This results in a potentially exploitable crash.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Thunderbird<52.1
52.1
Mozilla Firefox ESR<52.1
52.1
Mozilla Firefox ESR<45.9
45.9
Mozilla Firefox<53
53
Debian GNU/Linux=9.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
redhat enterprise Linux desktop=6.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux server=6.0
redhat enterprise Linux server=7.0
redhat enterprise Linux server aus=7.3
redhat enterprise Linux server aus=7.4
redhat enterprise Linux server eus=7.3
redhat enterprise Linux server eus=7.4
redhat enterprise Linux server eus=7.5
redhat enterprise Linux workstation=6.0
redhat enterprise Linux workstation=7.0
Mozilla Firefox<53.0
Mozilla Firefox=52.0
Mozilla Firefox ESR<45.9.0
Mozilla Thunderbird<52.1.0
Mozilla Firefox ESR=52.0
debian/firefox
135.0-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.7.0esr-1~deb11u1
128.5.0esr-1~deb12u1
128.7.0esr-1~deb12u1
128.7.0esr-1

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1347979

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2017-5442?

    CVE-2017-5442 is classified as a moderate severity vulnerability.

  • How do I fix CVE-2017-5442?

    To fix CVE-2017-5442, update Mozilla Thunderbird to version 52.1 or later, or update Firefox ESR to version 52.1 or later.

  • Which software is affected by CVE-2017-5442?

    CVE-2017-5442 affects Mozilla Thunderbird versions before 52.1 and Firefox ESR versions before 52.1.

  • Can CVE-2017-5442 lead to remote code execution?

    No, CVE-2017-5442 is a use-after-free vulnerability that can lead to crashes but not remote code execution.

  • Are there any known exploits for CVE-2017-5442?

    As of now, there are no publicly known exploits specifically targeting CVE-2017-5442.

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