Denial of Service (DoS) Affecting golang.org/x/net/html package, versions
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Test your applications- Snyk ID SNYK-GOLANG-GOLANGORGXNETHTML-3146845
- published 24 Nov 2022
- disclosed 14 Apr 2021
- credit Unknown
Introduced: 14 Apr 2021
CVE-2018-17075 Open this link in a new tabHow to fix?
Upgrade golang.org/x/net/html to version aaf60122140d3fcf75376d319f0554393160eb50 or higher.
Overview
golang.org/x/net/html is a package that implements an HTML5-compliant tokenizer and parser.
Affected versions of this package are vulnerable to Denial of Service (DoS) when processing user input containing the <template> tag, which can cause the parser to crash when in "in frameset" insertion mode.
Details
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm
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