critical
9.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2017-7809: Use After Free

First published: Tue Aug 08 2017(Updated: )

A use-after-free vulnerability can occur when an editor DOM node is deleted prematurely during tree traversal while still bound to the document. This results in a potentially exploitable crash.

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

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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 severity of CVE-2017-7809?

    CVE-2017-7809 is classified as a use-after-free vulnerability that may lead to a potentially exploitable crash.

  • How do I fix CVE-2017-7809?

    To fix CVE-2017-7809, users should upgrade to the latest patched version of affected software such as Firefox 118.0.2-1 or Firefox ESR versions listed.

  • What software is affected by CVE-2017-7809?

    The vulnerability affects various versions of Firefox, Firefox ESR, and Thunderbird prior to specified versions.

  • What are the potential consequences of CVE-2017-7809?

    CVE-2017-7809 may allow attackers to exploit the crash, potentially leading to unauthorized access or information leakage.

  • When was CVE-2017-7809 discovered?

    CVE-2017-7809 was disclosed in 2017 as part of a series of vulnerabilities identified in Mozilla products.

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