Use After Free Affecting firefox package, versions <90.0-1
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.81% (82nd
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1317007
- published 14 Jul 2021
- disclosed 5 Aug 2021
Introduced: 14 Jul 2021
CVE-2021-29970 Open this link in a new tabHow to fix?
Upgrade Debian:unstable
firefox
to version 90.0-1 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.
A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. This bug could only be triggered when accessibility was enabled.. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
References
- https://security-tracker.debian.org/tracker/CVE-2021-29970
- https://bugzilla.mozilla.org/show_bug.cgi?id=1709976
- https://www.mozilla.org/security/advisories/mfsa2021-28/
- https://www.mozilla.org/security/advisories/mfsa2021-29/
- https://www.mozilla.org/security/advisories/mfsa2021-30/
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14