high
8.8
CWE
843
Advisory Published
CVE Published
Updated

CVE-2019-17017

First published: Tue Jan 07 2020(Updated: )

Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<68.4
68.4
Mozilla Thunderbird<68.4.1
68.4.1
redhat/firefox<68.4
68.4
redhat/thunderbird<68.4.1
68.4.1
Mozilla Firefox<72
72
Mozilla Firefox<72.0
Mozilla Firefox ESR<68.4
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Canonical Ubuntu Linux=19.10
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
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=7.7
Redhat Enterprise Linux Server Tus=7.7
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
debian/firefox
133.0.3-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.5.0esr-1~deb11u1
128.3.1esr-1~deb12u1
128.5.0esr-1~deb12u1
128.5.0esr-1
128.5.1esr-1
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.5.0esr-1~deb11u1
1:115.16.0esr-1~deb12u1
1:128.5.0esr-1~deb12u1
1:128.5.2esr-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-2019-17017?

    CVE-2019-17017 is a vulnerability that can result in a crash due to a missing case handling object types, potentially allowing an attacker to run arbitrary code.

  • Which software is affected by CVE-2019-17017?

    Mozilla Firefox ESR version up to 68.4, Mozilla Thunderbird version up to 68.4.1, and Mozilla Firefox version up to 72 are affected by CVE-2019-17017.

  • What is the severity of CVE-2019-17017?

    CVE-2019-17017 has a severity level of high (7).

  • How can CVE-2019-17017 be exploited?

    CVE-2019-17017 could be exploited to run arbitrary code, but it would require a significant amount of effort.

  • How can I fix CVE-2019-17017?

    To fix CVE-2019-17017, update Mozilla Firefox ESR to version 68.4 or later, update Mozilla Thunderbird to version 68.4.1 or later, or update Mozilla Firefox to version 72 or later.

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