Remote access to CUPS service gives Bad Request 400

[TommyBoy]

Binary package hint: cups

Ubuntu 10.10 Latest Updates:

I can no longer print remotely using the public CUPS server address ComputerName:631/ is met is bad request 400.

Syslog reports:
Apr 17 15:49:12 AM2x6 kernel: [ 2828.130899] type=1400 audit(1303051752.778:63): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="rwc" denied_mask="rwc" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.131135] type=1400 audit(1303051752.778:64): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.141770] type=1400 audit(1303051752.790:65): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="rwc" denied_mask="rwc" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.142003] type=1400 audit(1303051752.790:66): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.147693] type=1400 audit(1303051752.794:67): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="rwc" denied_mask="rwc" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.147922] type=1400 audit(1303051752.794:68): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.150164] type=1400 audit(1303051752.798:69): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="rwc" denied_mask="rwc" fsuid=0 ouid=0
Apr 17 15:49:12 AM2x6 kernel: [ 2828.150394] type=1400 audit(1303051752.798:70): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Apr 17 15:49:17 AM2x6 kernel: [ 2832.567096] type=1400 audit(1303051757.214:71): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="rwc" denied_mask="rwc" fsuid=0 ouid=0
Apr 17 15:49:17 AM2x6 kernel: [ 2832.567330] type=1400 audit(1303051757.214:72): apparmor="DENIED" operation="open" parent=1 profile="/usr/sbin/cupsd" name="/var/run/samba/gencache.tdb" pid=1231 comm="cupsd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

cups:
  Installed: 1.4.4-6ubuntu2.3
  Candidate: 1.4.4-6ubuntu2.3
  Version table:
 *** 1.4.4-6ubuntu2.3 0
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick-updates/main i386 Packages
        500 http://security.ubuntu.com/ubuntu/ maverick-security/main i386 Packages
        100 /var/lib/dpkg/status
     1.4.4-6ubuntu2 0
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main i386 Packages

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: cups 1.4.4-6ubuntu2.3
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic-pae 2.6.35.11
Uname: Linux 2.6.35-28-generic-pae i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Sun Apr 17 16:21:23 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
Lpstat:
 device for LBP3010: ccp://localhost:59687
 device for LBP3010-LBP3018-LBP3050: usb://Canon/LBP3010/LBP3018/LBP3050
MachineType: System manufacturer System Product Name
Papersize: a4
PpdFiles:
 LBP3010: Canon LBP3010/LBP3018/LBP3050 CAPT (UK)
 LBP3010-LBP3018-LBP3050: Canon LBP3010/LBP3018/LBP3050 CAPT (UK)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-28-generic-pae root=UUID=4e67e412-cb5e-4858-85d6-12e78cd70ef3 ro quiet splash
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: cups
dmi.bios.date: 09/08/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1601
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A88TD-V EVO/USB3
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1601:bd09/08/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A88TD-VEVO/USB3:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[insaner (insaner)]

Related: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1086303