Use After Free Affecting firefox-esr package, versions <68.2.0esr-1~deb10u1
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Test your applications- Snyk ID SNYK-DEBIAN10-FIREFOXESR-474065
- published 22 Oct 2019
- disclosed 8 Jan 2020
Introduced: 22 Oct 2019
CVE-2019-11757 Open this link in a new tabHow to fix?
Upgrade Debian:10
firefox-esr
to version 68.2.0esr-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 following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.