CVE-2021-36773
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-36773
Vendor advisory: arch — https://security.archlinux.org/ASA-202107-38
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.36.2-1 | |
| debian | bookworm | fixed | 1.37.0+dfsg-1 |
| debian | bullseye | fixed | 1.37.0+dfsg-1~deb11u1 |
| debian | forky | fixed | 1.37.0+dfsg-1 |
| debian | sid | fixed | 1.37.0+dfsg-1 |
| debian | trixie | fixed | 1.37.0+dfsg-1 |
References
Verify integrity in audit chain (admin only). AS-IS.