CVE-2017-7819: Use After Free

Published Sep 28, 2017
·
Updated

A use-after-free vulnerability can occur in design mode when image objects are resized if objects referenced during the resizing have been freed from memory. This results in a potentially exploitable crash.

Affected Software

21 affected componentsFixes available
Mozilla Thunderbird<52.4
52.4
Mozilla Firefox<56
56
Mozilla Firefox ESR<52.4
52.4
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=7.5
redhat Enterprise Linux Workstation=6.0
redhat Enterprise Linux Workstation=7.0
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Mozilla Firefox<56.0
Mozilla Firefox ESR<52.4.0
Mozilla Thunderbird<52.4.0
Mozilla Firefox<52.4.0
debian/firefox
159.0.1-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.6.0esr-1~deb12u2140.15.0esr-1~deb13u1153.6.0esr-1~deb13u1153.5.1esr-1153.6.0esr-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:153.6.0esr-1~deb12u21:140.12.0esr-1~deb13u11:153.6.0esr-1~deb13u11:153.5.0esr-11:153.6.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 52.4
  2. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 56
  3. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 52.4
  4. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 159.0.1-1
  5. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1
  6. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1

Event History

Sep 28, 2017
CVE Published
12:00 AM
Data Sourced
via Red Hat·04:27 AM
DescriptionSeverityAffected Software
Jun 11, 2018
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionWeakness
Data Sourced
via NVD·09:29 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2017-7819?

The severity of CVE-2017-7819 is critical with a CVSS v3.0 score of 9.8.

2

Which software is affected by CVE-2017-7819?

CVE-2017-7819 affects Firefox versions before 56, Firefox ESR versions before 52.4, and Thunderbird versions before 52.4.

3

How can I fix the vulnerability in Firefox?

To fix the vulnerability in Firefox, update to version 56 or later.

4

How can I fix the vulnerability in Firefox ESR?

To fix the vulnerability in Firefox ESR, update to version 52.4 or later.

5

How can I fix the vulnerability in Thunderbird?

To fix the vulnerability in Thunderbird, update to version 52.4 or later.

Company

Resources

Contact

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