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[SECURITY] [DLA 3062-1] ublock-origin security update

Debian LTS Advisory DLA-3062-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
June 29, 2022                                 https://wiki.debian.org/LTS

Package        : ublock-origin
Version        : 1.42.0+dfsg-1~deb9u1
CVE ID         : CVE-2021-36773
Debian Bug     : 991386

uBlock, a Firefox add-on and efficient ads, malware and trackers blocker,
supported 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).

Please note that webext-ublock-origin was replaced by webext-ublock-origin-

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your ublock-origin packages.

For the detailed security status of ublock-origin please refer to
its security tracker page at:

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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