Uncontrolled Recursion Affecting ublock-origin package, versions <1.37.0+dfsg-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.53% (78th percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-UBLOCKORIGIN-1325380
  • published 23 Jul 2021
  • disclosed 18 Jul 2021

How to fix?

Upgrade Debian:unstable ublock-origin to version 1.37.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ublock-origin package and not the ublock-origin package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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).

CVSS Scores

version 3.1
Expand this section

NVD

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High