critical
9.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2016-9893: Buffer Overflow

First published: Tue Dec 13 2016(Updated: )

Memory safety bugs were reported in Thunderbird 45.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.

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<45.6
45.6
Debian=9.0
Red Hat Enterprise Linux=5.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux Desktop=5.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=5.0
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=5.0
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Thunderbird<45.6.0
Firefox<50.1
Firefox ESR<45.6.0
Firefox<50.1
50.1
Firefox ESR<45.6
45.6

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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-2016-9893?

    CVE-2016-9893 has been classified as a moderate severity vulnerability due to its potential for memory corruption and arbitrary code execution.

  • How do I fix CVE-2016-9893?

    To fix CVE-2016-9893, users should update their software to the latest versions: Firefox 50.1 or later, Firefox ESR 45.6 or later, and Thunderbird 45.6 or later.

  • Which software is affected by CVE-2016-9893?

    CVE-2016-9893 affects Firefox versions prior to 50.1, Firefox ESR versions prior to 45.6, and Thunderbird versions prior to 45.6.

  • Can CVE-2016-9893 lead to full system compromise?

    While CVE-2016-9893 involves memory safety bugs, it has the potential to be exploited to run arbitrary code, which could lead to a partial system compromise.

  • Is there a workaround for CVE-2016-9893?

    There is no known effective workaround for CVE-2016-9893, so the best course of action is to update to the fixed versions as soon as possible.

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