critical
9.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2018-5103: Use After Free

First published: Tue Jan 23 2018(Updated: )

A use-after-free vulnerability can occur during mouse event handling due to issues with multiprocess support. This results in a potentially exploitable crash.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
debian/firefox
131.0.2-2
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
Debian=7.0
Debian=8.0
Debian=9.0
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=7.4
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<58.0
Firefox ESR<52.6.0
Thunderbird<52.6.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=17.10
Thunderbird<52.6
52.6
Firefox<58
58
Firefox ESR<52.6
52.6

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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 CVE ID of this vulnerability?

    The CVE ID of this vulnerability is CVE-2018-5103.

  • What is the severity of CVE-2018-5103?

    The severity of CVE-2018-5103 is critical with a CVSS score of 9.8.

  • Which software versions are affected by CVE-2018-5103?

    CVE-2018-5103 affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.

  • How does CVE-2018-5103 occur?

    CVE-2018-5103 can occur during mouse event handling due to issues with multiprocess support.

  • Are there any fixes available for CVE-2018-5103?

    Yes, the remedy for CVE-2018-5103 is to update to Firefox version 58 or higher.

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