CVE-2021-29967
Description
Mozilla developers reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:2233
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:2264
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29967
Vendor advisory: arch — https://security.archlinux.org/ASA-202106-3
Vendor advisory: arch — https://security.archlinux.org/ASA-202106-22
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 78.11.0-1 | |
| debian | sid | fixed | 89.0-1 |
| debian | bookworm | fixed | 78.11.0esr-1 |
| debian | bullseye | fixed | 78.11.0esr-1 |
| debian | forky | fixed | 78.11.0esr-1 |
| debian | trixie | fixed | 78.11.0esr-1 |
| rocky | 8 | fixed | |
References
Verify integrity in audit chain (admin only). AS-IS.