A regular expression denial of service (ReDoS) vulnerability has been discovered in ua-parser-js.
Impact:
This vulnerability bypass the library's MAX_LENGTH input limit prevention. By crafting a very-very-long user-agent string with specific pattern, an attacker can turn the script to get stuck processing for a very long time which results in a denial of service (DoS) condition.
Affected Versions:
All versions of the library prior to version 0.7.33 / 1.0.33.
Patches:
A patch has been released to remove the vulnerable regular expression, update to version 0.7.33 / 1.0.33 or later.
This PR contains the following updates:
1.0.2->1.0.33GitHub Vulnerability Alerts
CVE-2022-25927
Description:
A regular expression denial of service (ReDoS) vulnerability has been discovered in
ua-parser-js.Impact:
This vulnerability bypass the library's
MAX_LENGTHinput limit prevention. By crafting a very-very-long user-agent string with specific pattern, an attacker can turn the script to get stuck processing for a very long time which results in a denial of service (DoS) condition.Affected Versions:
All versions of the library prior to version
0.7.33/1.0.33.Patches:
A patch has been released to remove the vulnerable regular expression, update to version
0.7.33/1.0.33or later.References:
Regular expression Denial of Service - ReDoS
Credits:
Thanks to @Snyk who first reported the issue.
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