Operation on a Resource after Expiration or Release Affecting firefox package, versions <88.0-1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.24% (62nd
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1251751
- published 20 Apr 2021
- disclosed 24 Jun 2021
Introduced: 20 Apr 2021
CVE-2021-23995 Open this link in a new tabHow to fix?
Upgrade Debian:unstable
firefox
to version 88.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox
package and not the firefox
package as distributed by Debian
.
See How to fix?
for Debian:unstable
relevant fixed versions and status.
When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.