CVE-2020-26973 Affecting firefox-esr package, versions <78.6.0esr-1~deb10u1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.26% (66th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN10-FIREFOXESR-1051652
- published 16 Dec 2020
- disclosed 7 Jan 2021
Introduced: 16 Dec 2020
CVE-2020-26973 Open this link in a new tabHow to fix?
Upgrade Debian:10
firefox-esr
to version 78.6.0esr-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.
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.