CVE-2019-11761: Race Condition
First published: Tue Oct 22 2019(Updated: )
A vulnerability was found in Mozilla Firefox and Thunderbird. Privileged JSONView objects that have been cloned into content can be accessed using a form with a data URI. This flaw bypasses existing defense-in-depth mechanisms and can be exploited over the network.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/firefox | <0:68.2.0-4.el6_10 | 0:68.2.0-4.el6_10 |
| redhat/thunderbird | <0:68.2.0-2.el6_10 | 0:68.2.0-2.el6_10 |
| redhat/firefox | <0:68.2.0-1.el7_7 | 0:68.2.0-1.el7_7 |
| redhat/thunderbird | <0:68.2.0-1.el7_7 | 0:68.2.0-1.el7_7 |
| redhat/firefox | <0:68.2.0-2.el8_0 | 0:68.2.0-2.el8_0 |
| redhat/thunderbird | <0:68.2.0-1.el8_0 | 0:68.2.0-1.el8_0 |
| redhat/firefox | <68.2 | 68.2 |
| redhat/thunderbird | <68.2 | 68.2 |
| Mozilla Thunderbird | <68.2 | 68.2 |
| Mozilla Firefox ESR | <68.2 | 68.2 |
| Mozilla Firefox | <70 | 70 |
| Mozilla Firefox | <70.0 | |
| Mozilla Firefox ESR | <68.2 | |
| Mozilla Thunderbird | <68.2 | |
| Canonical Ubuntu Linux | =16.04 | |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/firefox | <70.0 | 70.0 |
| ubuntu/firefox | <70.0+ | 70.0+ |
| ubuntu/thunderbird | <1:68.2.1+ | 1:68.2.1+ |
| ubuntu/thunderbird | <1:68.2.1+ | 1:68.2.1+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <1:68.2.0+ | 1:68.2.0+ |
| ubuntu/thunderbird | <68.2 | 68.2 |
| ubuntu/thunderbird | <1:68.7.0+ | 1:68.7.0+ |
| debian/firefox | 125.0.3-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.10.0esr-1~deb10u1 115.7.0esr-1~deb11u1 115.10.0esr-1~deb11u1 115.7.0esr-1~deb12u1 115.10.0esr-1~deb12u1 115.10.0esr-1 | |
| debian/thunderbird | 1:91.12.0-1~deb10u1 1:115.10.1-1~deb10u1 1:115.7.0-1~deb11u1 1:115.10.1-1~deb11u1 1:115.7.0-1~deb12u1 1:115.10.1-1~deb12u1 1:115.10.1-1 |
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.
Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-11761 https://nvd.nist.gov/vuln/detail/CVE-2019-11761 https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11761
- https://bugzilla.redhat.com/show_bug.cgi?id=1764442
- https://access.redhat.com/errata/RHSA-2019:3281
- https://access.redhat.com/errata/RHSA-2019:3756
- https://access.redhat.com/errata/RHSA-2019:3193
- https://access.redhat.com/errata/RHSA-2019:3210
- https://access.redhat.com/errata/RHSA-2019:3196
- https://access.redhat.com/errata/RHSA-2019:3237
- https://access.redhat.com/security/cve/cve-2019-11761
- https://bugzilla.mozilla.org/show_bug.cgi?id=1561502
- https://www.mozilla.org/security/advisories/mfsa2019-33/
- https://www.mozilla.org/security/advisories/mfsa2019-34/
- https://www.mozilla.org/security/advisories/mfsa2019-35/
- https://security.gentoo.org/glsa/202003-10
- https://usn.ubuntu.com/4335-1/
- https://launchpad.net/bugs/cve/CVE-2019-11761
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11761
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-35/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11764
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-11761
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-35/#CVE-2019-11761
- https://security-tracker.debian.org/tracker/CVE-2019-11761
- https://ubuntu.com/security/notices/USN-4165-1
- https://ubuntu.com/security/notices/USN-4202-1
- https://ubuntu.com/security/notices/USN-4335-1
- https://www.cve.org/CVERecord?id=CVE-2019-11761
- https://nvd.nist.gov/vuln/detail/CVE-2019-11761
- https://ubuntu.com/security/CVE-2019-11761
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2019-11761?
CVE-2019-11761 is a vulnerability that allows an attacker to gain access to the privileged JSONView object in Firefox and Thunderbird.
How does CVE-2019-11761 impact systems?
Exposing the privileged JSONView object could bypass existing defense mechanisms, although the impact appears to be minimal.
Which software versions are affected by CVE-2019-11761?
Firefox versions prior to 70 and Thunderbird versions prior to 68.2 are affected by CVE-2019-11761.
What is the severity of CVE-2019-11761?
CVE-2019-11761 has a severity rating of medium, with a CVSS score of 5.4.
How do I fix CVE-2019-11761?
To fix CVE-2019-11761, users should update their Firefox and Thunderbird installations to versions 70 and 68.2, respectively.
- collector/redhat-cve
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2019-11761
- agent/software-canonical-lookup
- collector/mozilla-advisory
- source/Mozilla
- agent/description
- agent/weakness
- agent/severity
- agent/software-canonical-lookup-request
- agent/references
- collector/nvd-cve
- source/NVD
- collector/nvd-index
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/mozilla
- canonical/mozilla thunderbird
- canonical/mozilla firefox esr
- canonical/mozilla firefox
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/16.04
- package-manager/debian
- package-manager/ubuntu