CWE
125
Advisory Published
CVE Published
Updated

CVE-2017-7753

First published: Tue Aug 08 2017(Updated: )

An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
debian/firefox
118.0.2-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.3.1esr-1~deb10u1
102.15.0esr-1~deb11u1
115.3.1esr-1~deb11u1
102.15.1esr-1~deb12u1
115.3.0esr-1~deb12u1
115.3.0esr-1
Thunderbird<52.3
52.3
Debian=8.0
Debian=9.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
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=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.3
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<55.0
Firefox ESR<52.3.0
Thunderbird<52.3.0
Firefox<55
55
Firefox ESR<52.3
52.3

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2017-7753?

    CVE-2017-7753 has a moderate severity rating due to the potential for out-of-bounds reads.

  • How do I fix CVE-2017-7753?

    To fix CVE-2017-7753, update Thunderbird to version 52.3 or newer, or Firefox to versions specified in security advisories.

  • Which versions of Firefox are affected by CVE-2017-7753?

    CVE-2017-7753 affects Firefox versions prior to 55.0.

  • Is Thunderbird vulnerable to CVE-2017-7753?

    Yes, Thunderbird versions below 52.3 are vulnerable to CVE-2017-7753.

  • What are the recommended updates for Firefox ESR to mitigate CVE-2017-7753?

    Firefox ESR versions prior to 52.3 are vulnerable; users should update to specified later versions to mitigate this vulnerability.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203