Description
A flaw was found in the ChunkReader component of the Undertow web server, which is used to handle chunked transfer encoding in HTTP requests. The issue occurs because a security check for the chunk size is performed before the value is shifted, allowing a specifically crafted 15-digit chunk size to bypass the limit and overflow into internal state flags. This can cause the server to terminate a request body prematurely and interpret the remaining data as a separate, smuggled request.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Red Hat Red Hat build of Apache Camel for Spring Boot 4
Default version status: affected
Red Hat Red Hat Enterprise Linux 8
Default version status: unknown
Red Hat Red Hat Enterprise Linux 8
Default version status: unknown
Red Hat Red Hat Enterprise Linux 9
Default version status: unknown
Red Hat Red Hat Fuse 7
Default version status: affected
Red Hat Red Hat JBoss Enterprise Application Platform 7
Default version status: affected
Red Hat Red Hat JBoss Enterprise Application Platform 7
Default version status: affected
Red Hat Red Hat JBoss Enterprise Application Platform 7
Default version status: affected
Red Hat Red Hat JBoss Enterprise Application Platform 7
Default version status: affected
Red Hat Red Hat JBoss Enterprise Application Platform 8
Default version status: affected
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
Default version status: unaffected
Red Hat Red Hat Single Sign-On 7
Default version status: affected