CVE-2019-17024: High severity Mozilla Thunderbird vulnerability
Last updated 25 August 2025
Other sources
Mozilla developers Jason Kratzer, Christian Holler, and Bob Clary reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
— Mozilla
Mozilla developers Jason Kratzer, Christian Holler, and Bob Clary reported memory safety bugs present in Thunderbird 68.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
— Mozilla
Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/firefoxto a version that resolves this vulnerability.Fixed in 68.4 - Upgrade
Upgrade
redhat/thunderbirdto a version that resolves this vulnerability.Fixed in 68.4.1 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 68.4.1 - Upgrade
Upgrade
Firefoxto a version that resolves this vulnerability.Fixed in 72 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 68.4 - Upgrade
Upgrade
debian/firefoxto a version that resolves this vulnerability.Fixed in 149.0.2-1 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 115.14.0esr-1~deb11u1Fixed in 140.9.1esr-1~deb11u1Fixed in 128.14.0esr-1~deb12u1Fixed in 140.9.1esr-1~deb12u1Fixed in 140.8.0esr-1~deb13u1Fixed in 140.9.1esr-1~deb13u1Fixed in 140.9.1esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:115.12.0-1~deb11u1Fixed in 1:140.9.1esr-1~deb11u1Fixed in 1:140.6.0esr-1~deb12u1Fixed in 1:140.9.1esr-1~deb12u1Fixed in 1:140.8.0esr-1~deb13u1Fixed in 1:140.9.1esr-1~deb13u1Fixed in 1:140.9.0esr-1Fixed in 1:140.9.1esr-1
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2019-17024.
What is the severity of CVE-2019-17024?
CVE-2019-17024 has a severity rating of high.
Which software products are affected by CVE-2019-17024?
The software products affected by CVE-2019-17024 are Mozilla Firefox ESR (versions up to exclusive 68.4), Mozilla Thunderbird (versions up to exclusive 68.4.1), and Mozilla Firefox (versions up to exclusive 72).
What are the potential risks of CVE-2019-17024?
CVE-2019-17024 could allow attackers to exploit memory corruption bugs and run arbitrary code.
Where can I find more information about CVE-2019-17024?
You can find more information about CVE-2019-17024 on the Mozilla Bugzilla and Mozilla security advisories websites.