CVE-2021-23953 Affecting firefox-esr package, versions <78.7.0esr-1~deb10u1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Threat Intelligence
EPSS
0.11% (43rd
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN10-FIREFOXESR-1065078
- published 27 Jan 2021
- disclosed 26 Feb 2021
Introduced: 27 Jan 2021
CVE-2021-23953 Open this link in a new tabHow to fix?
Upgrade Debian:10
firefox-esr
to version 78.7.0esr-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.
If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.