Last Modified: Feb 07, 2024
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1
Fixed In:
17.0.0, 16.1.2.2, 15.1.5.1, 14.1.4.6, 13.1.5
Opened: Oct 21, 2020 Severity: 3-Major
SIP Requests that don't contain a content_length header are accepted and forwarded by the BIG-IP to the server. SIP Responses that don't contain a content_length header are accepted and forwarded to the client. The sipmsg parser does not treats the content_length header as a required header as part of the SIP Request / Response.
RFC 6731 non compliance.
SIP request / response without content_length header.
N/A
BIG-IP now aborts the connection of any TCP SIP request / response that does not contain a content_length header. content_length header is treated as optional for UDP and SCTP.