Bug ID 910253: BD error on HTTP response after upgrade

Last Modified: Jun 03, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP ASM, Install/Upgrade(all modules)

Known Affected Versions:
15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3

Opened: May 19, 2020
Severity: 3-Major

Symptoms

After upgrade, some requests can cause BD errors on response: BEM|ERR |May 19 17:49:55.800|0983|response_header_accumulator.c:0200|Error: CookieMgrBuildCookie failed. ans 1 job 2957561040 IO_PLUGIN|ERR |May 19 17:49:55.800|0983|io_plugin.c:3320|TMEVT_RESPONSE: Cannot build a ts cookie.

Impact

For some requests, the response can arrive truncated or not arrive at all.

Conditions

-- Upgrading BIG-IP to 15.0.0 or later from versions earlier than 15.0.0. -- ASM policy is configured on a virtual server.

Workaround

Add an iRule that deletes ASM cookies: when HTTP_REQUEST { set cookies [HTTP::cookie names] foreach aCookie $cookies { if {$aCookie matches_regex {^TS(?:[0-9a-fA-F]{6,8})(?:$|_[0-9]+$)}} { HTTP::cookie remove $aCookie } } }

Fix Information

None

Behavior Change