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RubySecRUBY:RAILS-HTML-SANITIZER-2022-23517HistoryDec 12, 2022 - 9:00 p.m.
Inefficient Regular Expression Complexity in rails-html-sanitizer
2022-12-1221:00:00
RubySec
github.com
9
rails-html-sanitizer
regex
svg
denial of service
cpu resource consumption
mitigation
upgrade
CVSS3
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.
Mitigation
Upgrade to rails-html-sanitizer >= 1.4.4.
Affected configurations
Node
rubyrails-html-sanitizerRange≤1.4.4
| Vendor | Product | Version | CPE |
|---|---|---|---|
| ruby | rails-html-sanitizer | * | cpe:2.3:a:ruby:rails-html-sanitizer:*:*:*:*:*:*:*:* |
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CVSS3
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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