Use After Free Affecting firefox-esr package, versions <68.12.0esr-1~deb10u1
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Test your applications- Snyk ID SNYK-DEBIAN10-FIREFOXESR-608764
- published 26 Aug 2020
- disclosed 1 Oct 2020
Introduced: 26 Aug 2020
CVE-2020-15669 Open this link in a new tabHow to fix?
Upgrade Debian:10
firefox-esr
to version 68.12.0esr-1~deb10u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox-esr
package and not the firefox-esr
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.