Regular Expression Denial of Service (ReDoS) in ContentType.java. (GHSL-2022-022) (CVE-2022-31781)
PRODUCT AFFECTED: This issue affects Apache Tapestry 5.8.1. PROBLEM: Severity: low 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. This issue has been assigned CVE-2022-31781. MODIFICATION HISTORY: : Initial Publication. RELATED LINKS: CVE-2022-31781 at cve.mitre.org ACKNOWLEDGEMENTS: CodeQL team members [@atorralba (Tony Torralba)](https://github.com/atorralba) and [@joefarebrother (Joseph Farebrother)](https://github.com/joefarebrother). --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
