CVE-2021-36773: High severity nmatrix vulnerability
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).
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-36773?
CVE-2021-36773 is classified as a high severity vulnerability due to its potential for causing denial of service.
What types of software are affected by CVE-2021-36773?
CVE-2021-36773 affects uBlock Origin versions before 1.36.2, nMatrix versions before 4.4.9, and uMatrix versions before 1.4.2.
How does CVE-2021-36773 exploit parameter nesting?
CVE-2021-36773 allows crafted websites to exploit an arbitrary depth of parameter nesting to trigger unbounded recursion and memory consumption.
How do I fix CVE-2021-36773 on uBlock Origin?
To fix CVE-2021-36773, update uBlock Origin to version 1.36.2 or later.
What impact does CVE-2021-36773 have on system performance?
CVE-2021-36773 can cause significant system performance degradation by consuming memory and potentially losing all blocking functionality.