CVE-2019-9790: Use After Free
First published: Tue Mar 19 2019(Updated: )
A use-after-free vulnerability can occur when a raw pointer to a DOM element on a page is obtained using JavaScript and the element is then removed while still in use. This results in a potentially exploitable crash.
Credit: security@mozilla.org security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Thunderbird | <60.6 | 60.6 |
| Mozilla Firefox ESR | <60.6 | 60.6 |
| Mozilla Firefox | <66 | 66 |
| Mozilla Firefox | <=66.0 | |
| Mozilla Firefox ESR | <=60.6 | |
| Mozilla Thunderbird | <=60.6 | |
| debian/firefox | 133.0.3-1 | |
| debian/firefox-esr | 115.14.0esr-1~deb11u1 128.5.0esr-1~deb11u1 128.3.1esr-1~deb12u1 128.5.0esr-1~deb12u1 128.5.0esr-1 128.5.1esr-1 | |
| debian/thunderbird | 1:115.12.0-1~deb11u1 1:128.5.0esr-1~deb11u1 1:115.16.0esr-1~deb12u1 1:128.5.0esr-1~deb12u1 1:128.5.2esr-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1525145
- https://www.mozilla.org/security/advisories/mfsa2019-07/
- https://www.mozilla.org/security/advisories/mfsa2019-08/
- https://www.mozilla.org/security/advisories/mfsa2019-11/
- https://access.redhat.com/errata/RHSA-2019:0966
- https://access.redhat.com/errata/RHSA-2019:1144
- https://launchpad.net/bugs/cve/CVE-2019-9790
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9790
- https://access.redhat.com/errata/RHSA-2019:0622
- https://access.redhat.com/errata/RHSA-2019:0623
- https://access.redhat.com/errata/RHSA-2019:0680
- https://access.redhat.com/errata/RHSA-2019:0681
- https://bugzilla.redhat.com/show_bug.cgi?id=1690675
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9788
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9790
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9790
- https://security-tracker.debian.org/tracker/CVE-2019-9790
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9790
- https://nvd.nist.gov/vuln/detail/CVE-2019-9790
- https://ubuntu.com/security/CVE-2019-9790
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2019-9790?
CVE-2019-9790 is a use-after-free vulnerability in Mozilla Firefox and Thunderbird.
How does CVE-2019-9790 occur?
CVE-2019-9790 occurs when a raw pointer to a DOM element is obtained using JavaScript and the element is then removed while still in use.
Which software is affected by CVE-2019-9790?
CVE-2019-9790 affects Thunderbird versions less than 60.6, Firefox ESR versions less than 60.6, and Firefox versions less than 66.
What is the severity of CVE-2019-9790?
CVE-2019-9790 has a severity rating of critical.
How can I fix CVE-2019-9790?
To fix CVE-2019-9790, update to Mozilla Firefox version 66 or higher, or update to Thunderbird version 60.6 or higher.
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