Name | CVE-2021-36773 |
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). |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DLA-3062-1 |
Debian Bugs | 991344, 991386 |
Vulnerable and fixed packages
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|
ublock-origin (PTS) | stretch (security), stretch (lts), stretch | 1.42.0+dfsg-1~deb9u1 | fixed |
| buster | 1.42.0+dfsg-1~deb10u1 | fixed |
| bullseye | 1.42.0+dfsg-1~deb11u1 | fixed |
| bookworm | 1.46.0+dfsg-1 | fixed |
| sid, trixie | 1.57.0+dfsg-1 | fixed |
umatrix (PTS) | buster | 1.3.16+dfsg-2 | vulnerable |
| sid | 1.4.0+dfsg-1 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
[buster] - umatrix <no-dsa> (Minor issue)
https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adoc