critical
9.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2018-5096: Use After Free

First published: Tue Jan 23 2018(Updated: )

A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<52.6
52.6
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Redhat Enterprise Linux=6.0
Redhat 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=7.4
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 ESR<52.6.0
Mozilla Thunderbird<52.6.0
Mozilla Thunderbird<52.6
52.6
debian/firefox-esr
115.14.0esr-1~deb11u1
128.3.1esr-1~deb11u1
115.14.0esr-1~deb12u1
128.3.1esr-1~deb12u1
128.3.0esr-2
128.3.1esr-2
debian/thunderbird
1:115.12.0-1~deb11u1
1:115.16.0esr-1~deb11u1
1:115.12.0-1~deb12u1
1:115.16.0esr-1~deb12u1
1:128.2.0esr-1
1:128.3.0esr-1

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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 CVE-2018-5096?

    CVE-2018-5096 is a use-after-free vulnerability that can occur while editing events in form elements on a page, resulting in a potentially exploitable crash.

  • Which software is affected by CVE-2018-5096?

    Firefox ESR < 52.6 and Thunderbird < 52.6 are affected by CVE-2018-5096.

  • What is the severity of CVE-2018-5096?

    CVE-2018-5096 has a severity rating of 9.8 (Critical).

  • What is the remedy for CVE-2018-5096?

    The recommended remedy for CVE-2018-5096 is to upgrade to Firefox ESR version 52.6 or later, or Thunderbird version 52.6 or later.

  • Where can I find more information about CVE-2018-5096?

    You can find more information about CVE-2018-5096 on the following references: [Mozilla Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1418922), [Mozilla Security Advisory](https://www.mozilla.org/en-US/security/advisories/mfsa2018-03/), [CVE Mitre](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5096).

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