CVE-2022-31781: Regular Expression Denial of Service (ReDoS) in ContentType.java. (GHSL-2022-022)
First published: Wed Jul 13 2022(Updated: )
Apache Tapestry up to version 5.8.1 is vulnerable to Regular Expression Denial of Service (ReDoS) in the way it handles Content Types. Specially crafted Content Types may cause catastrophic backtracking, taking exponential time to complete. Specifically, this is about the regular expression used on the parameter of the org.apache.tapestry5.http.ContentType class. Apache Tapestry 5.8.2 has a fix for this vulnerability. Notice the vulnerability cannot be triggered by web requests in Tapestry code alone. It would only happen if there's some non-Tapestry codepath passing some outside input to the ContentType class constructor.
Credit: security@apache.org security@apache.org security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Tapestry | <5.8.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-31781?
CVE-2022-31781 is classified as a high-severity vulnerability due to its potential for causing Denial of Service.
How do I fix CVE-2022-31781?
To mitigate CVE-2022-31781, upgrade Apache Tapestry to version 5.8.2 or later.
What type of attack is associated with CVE-2022-31781?
CVE-2022-31781 is associated with Regular Expression Denial of Service (ReDoS) attacks.
Which versions of Apache Tapestry are affected by CVE-2022-31781?
CVE-2022-31781 affects Apache Tapestry versions up to 5.8.1.
What is the impact of exploiting CVE-2022-31781?
Exploiting CVE-2022-31781 can lead to catastrophic backtracking in regular expressions, resulting in significant delays and potential service outages.
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