Race Condition Affecting firefox-esr package, versions <68.2.0esr-1~deb10u1
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Test your applications- Snyk ID SNYK-DEBIAN10-FIREFOXESR-474051
- published 22 Oct 2019
- disclosed 8 Jan 2020
How 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.
By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11761
- https://security-tracker.debian.org/tracker/CVE-2019-11761
- https://security.gentoo.org/glsa/202003-10
- 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://bugzilla.mozilla.org/show_bug.cgi?id=1561502
- https://usn.ubuntu.com/4335-1/
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-11761