critical
9.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2017-7828: Use After Free

First published: Tue Nov 14 2017(Updated: )

A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Thunderbird<52.5
52.5
Mozilla Firefox ESR<52.5
52.5
Mozilla Firefox<57
57
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
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<57.0
Mozilla Firefox ESR<52.5.0
Mozilla Thunderbird<52.5.0
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

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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-2017-7828?

    CVE-2017-7828 is a use-after-free vulnerability that can occur when flushing and resizing layout in Firefox, Firefox ESR, and Thunderbird.

  • What is the severity of CVE-2017-7828?

    CVE-2017-7828 has a severity level of critical (9 out of 10).

  • How does CVE-2017-7828 affect Firefox?

    CVE-2017-7828 affects Firefox versions before 57.

  • How does CVE-2017-7828 affect Firefox ESR?

    CVE-2017-7828 affects Firefox ESR versions before 52.5.

  • How does CVE-2017-7828 affect Thunderbird?

    CVE-2017-7828 affects Thunderbird versions before 52.5.

  • How do I fix CVE-2017-7828?

    To fix CVE-2017-7828, update Firefox to version 57 or later, Firefox ESR to version 52.5 or later, and Thunderbird to version 52.5 or later.

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