CVE-2019-9813
First published: Fri Mar 22 2019(Updated: )
Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Thunderbird | <60.6.1 | 60.6.1 |
| Mozilla Firefox ESR | <60.6.1 | 60.6.1 |
| Mozilla Firefox | <66.0.1 | 66.0.1 |
| Mozilla Firefox | <66.0.1 | |
| Mozilla Firefox ESR | <60.6.1 | |
| Mozilla Thunderbird | <60.6.1 | |
| debian/firefox | 132.0.2-1 | |
| debian/firefox-esr | 115.14.0esr-1~deb11u1 128.4.0esr-1~deb11u1 128.3.1esr-1~deb12u1 128.4.0esr-1~deb12u1 128.4.0esr-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538006
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-12/
- https://www.mozilla.org/security/advisories/mfsa2019-09/
- https://www.mozilla.org/security/advisories/mfsa2019-10/
- https://www.mozilla.org/security/advisories/mfsa2019-12/
- https://access.redhat.com/errata/RHSA-2019:0966
- https://access.redhat.com/errata/RHSA-2019:1144
- https://launchpad.net/bugs/cve/CVE-2019-9813
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-10/#CVE-2019-9813
- https://access.redhat.com/errata/RHSA-2019:0671
- https://access.redhat.com/errata/RHSA-2019:0672
- https://access.redhat.com/errata/RHSA-2019:0680
- https://access.redhat.com/errata/RHSA-2019:0681
- https://bugzilla.redhat.com/show_bug.cgi?id=1692182
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-10/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-12/#CVE-2019-9810
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-09/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-09/#CVE-2019-9813
- https://security-tracker.debian.org/tracker/CVE-2019-9813
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9813
- https://nvd.nist.gov/vuln/detail/CVE-2019-9813
- https://ubuntu.com/security/CVE-2019-9813
Frequently Asked Questions
What is CVE-2019-9813?
CVE-2019-9813 is a vulnerability in Firefox, Firefox ESR, and Thunderbird that allows for type confusion and arbitrary memory read and write.
Which software versions are affected by CVE-2019-9813?
CVE-2019-9813 affects Firefox versions prior to 66.0.1, Firefox ESR versions prior to 60.6.1, and Thunderbird versions prior to 60.6.1.
How severe is CVE-2019-9813?
CVE-2019-9813 has a severity score of 8.8 (critical).
How can I fix CVE-2019-9813?
To fix CVE-2019-9813, update to Firefox version 66.0.1 or later, Firefox ESR version 60.6.1 or later, or Thunderbird version 60.6.1 or later.
Where can I find more information about CVE-2019-9813?
You can find more information about CVE-2019-9813 in the Mozilla security advisory (https://www.mozilla.org/en-US/security/advisories/mfsa2019-10/#CVE-2019-9813) and the Red Hat security advisories (https://access.redhat.com/errata/RHSA-2019:0671, https://access.redhat.com/errata/RHSA-2019:0672).
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