CVE-2010-4083

[Brad Figg]

sys_semctl: fix kernel stack leakage

The semctl syscall has several code paths that lead to the leakage of
uninitialized kernel stack memory (namely the IPC_INFO, SEM_INFO,
IPC_STAT, and SEM_STAT commands) during the use of the older, obsolete
version of the semid_ds struct.

The copy_semid_to_user() function declares a semid_ds struct on the stack
and copies it back to the user without initializing or zeroing the
"sem_base", "sem_pending", "sem_pending_last", and "undo" pointers,
allowing the leakage of 16 bytes of kernel stack memory.

The code is still reachable on 32-bit systems - when calling semctl()
newer glibc's automatically OR the IPC command with the IPC_64 flag, but
invoking the syscall directly allows users to use the older versions of
the struct.

[Brad Figg (brad-figg)]

The upstream commit for this patch is: 982f7c2b2e6a28f8f266e075d92e19c0dd4c6e56

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 2.6.24-28.86

---------------
linux (2.6.24-28.86) hardy-proposed; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #716166

  [Tim Gardner]

  * xen unified block-device I/O interface back end can orphan devices,
    CVE-2010-3699
    - LP: #708019
    - CVE-2010-3699

  [Upstream Kernel Changes]

  * Hardy SRU: thinkpad-acpi: lock down video output state access,
    CVE-2010-3448
    - LP: #706999
    - CVE-2010-3448
  * net: Limit socket I/O iovec total length to INT_MAX., CVE-2010-3859
    - LP: #711855, #708839
    - CVE-2010-4160
  * net: Truncate recvfrom and sendto length to INT_MAX., CVE-2010-3859
    - LP: #711855, #708839
    - CVE-2010-4160
  * net: ax25: fix information leak to userland, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * net: ax25: fix information leak to userland harder, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * memory corruption in X.25 facilities parsing, CVE-2010-3873
    - LP: #709372
    - CVE-2010-3873
  * net: packet: fix information leak to userland, CVE-2010-3876
    - LP: #710714
    - CVE-2010-3876
  * net: tipc: fix information leak to userland, CVE-2010-3877
    - LP: #711291
    - CVE-2010-3877
  * KVM: VMX: fix vmx null pointer dereference on debug register access,
    CVE-2010-0435
    - LP: #712615
    - CVE-2010-0435
  * gdth: integer overflow in ioctl, CVE-2010-4157
    - LP: #711797
    - CVE-2010-4157
  * posix-cpu-timers: workaround to suppress the problems with mt exec,
    CVE-2010-4248
    - LP: #712609
    - CVE-2010-4248
  * ALSA: sound/pci/rme9652: prevent reading uninitialized stack memory,
    CVE-2010-4080, CVE-2010-4081
    - LP: #712723, #712737
    - CVE-2010-4081
  * sys_semctl: fix kernel stack leakage, CVE-2010-4083
    - LP: #712749
    - CVE-2010-4083
  * inet_diag: Make sure we actually run the same bytecode we audited,
    CVE-2010-3880
    - LP: #711865
    - CVE-2010-3880

linux (2.6.24-28.85) hardy-proposed; urgency=low

  [ Brad Figg ]

  * Tracking Bug
    - LP: #708315

  [Upstream Kernel Changes]

  * ata_piix: IDE mode SATA patch for Intel ICH10 DeviceID's
    - LP: #693401
  * USB: serial/mos*: prevent reading uninitialized stack memory,
    CVE-2010-4074
    - LP: #706149
    - CVE-2010-4074
  * KVM: Fix fs/gs reload oops with invalid ldt
    - LP: #707000
    - CVE-2010-3698
  * drivers/video/sis/sis_main.c: prevent reading uninitialized stack
    memory, CVE-2010-4078
    - LP: #707579
    - CVE-2010-4078
  * V4L/DVB: ivtvfb: prevent reading uninitialized stack memory,
    CVE-2010-4079
    - LP: #707649
    - CVE-2010-4079

linux (2.6.24-28.84) hardy-proposed; urgency=low

  [ Steve Conklin ]

  * Tracking Bug
    - LP: #698185

linux (2.6.24-28.83) hardy-proposed; urgency=low

  [ Steve Conklin ]
  * tracking bug moved from here to latest entry

linux (2.6.24-28.82) hardy-proposed; urgency=low

  [ Leann Ogasawara ]

  * Revert "SAUCE: AF_ECONET saddr->cookie prevent NULL pointer
    dereference"
  * Revert "SAUCE: AF_ECONET SIOCSIFADDR ioctl does not check privileges"
  * Revert "SAUCE: AF_ECONET prevent kernel stack overflow"

  [Upstream Kernel Changes]

  * xfs: validate untrust...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 2.6.31-22.73

---------------
linux (2.6.31-22.73) karmic-proposed; urgency=low

  [ Steve Conklin ]

  * Release Tracking Bug
    - LP: #716648

  [ Upstream Kernel Changes ]

  * copied ABI directory
  * net: Limit socket I/O iovec total length to INT_MAX., CVE-2010-3859
    - LP: #708839, #711855
    - CVE-2010-4160
  * net: Truncate recvfrom and sendto length to INT_MAX., CVE-2010-3859
    - LP: #708839, #711855
    - CVE-2010-4160
  * net: fix rds_iovec page count overflow, CVE-2010-3865
    - LP: #709153
    - CVE-2010-3865
  * net: ax25: fix information leak to userland, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * net: ax25: fix information leak to userland harder, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * can-bcm: fix minor heap overflow
    - LP: #710680
    - CVE-2010-3874
  * memory corruption in X.25 facilities parsing, CVE-2010-3873
    - LP: #709372
    - CVE-2010-3873
  * net: packet: fix information leak to userland, CVE-2010-3876
    - LP: #710714
    - CVE-2010-3876
  * net: tipc: fix information leak to userland, CVE-2010-3877
    - LP: #711291
    - CVE-2010-3877
  * KVM: VMX: fix vmx null pointer dereference on debug register access,
    CVE-2010-0435
    - LP: #712615
    - CVE-2010-0435
  * gdth: integer overflow in ioctl, CVE-2010-4157
    - LP: #711797
    - CVE-2010-4157
  * posix-cpu-timers: workaround to suppress the problems with mt exec,
    CVE-2010-4248
    - LP: #712609
    - CVE-2010-4248
  * ALSA: sound/pci/rme9652: prevent reading uninitialized stack memory,
    CVE-2010-4080, CVE-2010-4081
    - LP: #712723, #712737
    - CVE-2010-4081
  * drivers/video/via/ioctl.c: prevent reading uninitialized stack memory,
    CVE-2010-4082
    - LP: #712744
    - CVE-2010-4082
  * sys_semctl: fix kernel stack leakage, CVE-2010-4083
    - LP: #712749
    - CVE-2010-4083
  * inet_diag: Make sure we actually run the same bytecode we audited,
    CVE-2010-3880
    - LP: #711865
    - CVE-2010-3880

linux (2.6.31-22.72) karmic-proposed; urgency=low

  [ Brad Figg ]

  * Tracking Bug
    - LP: #708860

  [ Upstream Kernel Changes ]

  * Karmic SRU: thinkpad-acpi: lock down video output state access, CVE-2010-3448
    - LP: #706999
    - CVE-2010-3448
  * USB: serial/mos*: prevent reading uninitialized stack memory,
    CVE-2010-4074
    - LP: #706149
    - CVE-2010-4074
  * KVM: Fix fs/gs reload oops with invalid ldt
    - LP: #707000
    - CVE-2010-3698
  * drivers/video/sis/sis_main.c: prevent reading uninitialized stack
    memory, CVE-2010-4078
    - LP: #707579
    - CVE-2010-4078
  * V4L/DVB: ivtvfb: prevent reading uninitialized stack memory,
    CVE-2010-4079
    - LP: #707649
    - CVE-2010-4079

linux (2.6.31-22.71) karmic-proposed; urgency=low

  [ Brad Figg ]

  - LP: #698214

  [ Upstream Kernel Changes ]

  * ipc: initialize structure memory to zero for compat functions
  * tcp: Increase TCP_MAXSEG socket option minimum.
    - CVE-2010-4165
  * perf_events: Fix perf_counter_mmap() hook in mprotect()
    - CVE-2010-4169
  * af_unix: limit unix_tot_inflight
    - CVE-2010-4249
 -- Steve Conklin <email address hidden> Thu, 10 Feb 2011 13:49:49...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 2.6.35-27.48

---------------
linux (2.6.35-27.48) maverick-proposed; urgency=low

  [ Steve Conklin ]

  * Release Tracking Bug
    - LP: #723335

  [ Upstream Kernel Changes ]

  * thinkpad-acpi: avoid keymap pitfall
    - LP: #722747

linux (2.6.35-27.47) maverick-proposed; urgency=low

  [ Brad Figg ]

  * Release Tracking Bug
    - LP: #716532

  [ Upstream Kernel Changes ]

  * Revert "USB: gadget: Allow function access to device ID data during
    bind()"
    - LP: #714732
  * net: fix rds_iovec page count overflow, CVE-2010-3865
    - LP: #709153
    - CVE-2010-3865
  * Input: fix typo in keycode validation supporting large scancodes
    - LP: #658198
  * net: ax25: fix information leak to userland, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * net: ax25: fix information leak to userland harder, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * net: packet: fix information leak to userland, CVE-2010-3876
    - LP: #710714
    - CVE-2010-3876
  * net: tipc: fix information leak to userland, CVE-2010-3877
    - LP: #711291
    - CVE-2010-3877
  * posix-cpu-timers: workaround to suppress the problems with mt exec,
    CVE-2010-4248
    - LP: #712609
    - CVE-2010-4248
  * sys_semctl: fix kernel stack leakage, CVE-2010-4083
    - LP: #712749
    - CVE-2010-4083
  * thinkpad-acpi: lock down size of hotkey keymap
    - LP: #712174
  * thinkpad-acpi: add support for model-specific keymaps
    - LP: #712174
  * thinkpad-acpi: Add KEY_CAMERA (Fn-F6) for Lenovo keyboards
    - LP: #712174
  * x86, hotplug: Use mwait to offline a processor, fix the legacy case
    - LP: #714732
  * fuse: verify ioctl retries
    - LP: #714732
  * fuse: fix ioctl when server is 32bit
    - LP: #714732
  * ALSA: hda: Use position_fix=1 for Acer Aspire 5538 to enable capture on
    internal mic
    - LP: #685161, #714732
  * ALSA: hda: Use model=lg quirk for LG P1 Express to enable playback and
    capture
    - LP: #595482, #714732
  * drm/radeon/kms: don't apply 7xx HDP flush workaround on AGP
    - LP: #714732
  * drm/kms: remove spaces from connector names (v2)
    - LP: #714732
  * drm/radeon/kms: fix vram base calculation on rs780/rs880
    - LP: #714732
  * nohz: Fix printk_needs_cpu() return value on offline cpus
    - LP: #714732
  * nohz: Fix get_next_timer_interrupt() vs cpu hotplug
    - LP: #714732
  * nfsd: Fix possible BUG_ON firing in set_change_info
    - LP: #714732
  * NFS: Fix fcntl F_GETLK not reporting some conflicts
    - LP: #714732
  * sunrpc: prevent use-after-free on clearing XPT_BUSY
    - LP: #714732
  * hwmon: (adm1026) Allow 1 as a valid divider value
    - LP: #714732
  * hwmon: (adm1026) Fix setting fan_div
    - LP: #714732
  * EDAC: Fix workqueue-related crashes
    - LP: #714732
  * amd64_edac: Fix interleaving check
    - LP: #714732
  * ASoC: Fix swap of left and right channels for WM8993/4 speaker boost
    gain
    - LP: #714732
  * ASoC: Fix off by one error in WM8994 EQ register bank size
    - LP: #714732
  * ASoC: WM8580: Fix R8 initial value
    - LP: #714732
  * ASoC: fix deemphasis control in wm8904/55/60 codecs
    - LP: #714732
  * bootmem: Add alloc_bootmem_...

[Paolo Pisati (p-pisati)]

karmic is EOL

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-fsl-imx51 - 2.6.31-609.26

---------------
linux-fsl-imx51 (2.6.31-609.26) lucid; urgency=low

  [ Paolo Pisati ]

  * Tracking bug
    - LP: #795219
  * [Config] Disable parport_pc on fsl-imx51
    - LP: #601226

  [ Upstream Kernel Changes ]

  * ALSA: sound/pci/rme9652: prevent reading uninitialized stack memory
    - LP: #712723, #712737
  * can-bcm: fix minor heap overflow
    - LP: #710680
  * drivers/video/via/ioctl.c: prevent reading uninitialized stack memory
    - LP: #712744
  * gdth: integer overflow in ioctl
    - LP: #711797
  * inet_diag: Make sure we actually run the same bytecode we audited, CVE-2010-3880
    - LP: #711865
    - CVE-2010-3880
  * net: fix rds_iovec page count overflow, CVE-2010-3865
    - LP: #709153
    - CVE-2010-3865
  * net: packet: fix information leak to userland, CVE-2010-3876
    - LP: #711045
    - CVE-2010-3876
  * net: tipc: fix information leak to userland, CVE-2010-3877
    - LP: #711291
    - CVE-2010-3877
  * net: Truncate recvfrom and sendto length to INT_MAX.
    - LP: #708839
  * posix-cpu-timers: workaround to suppress the problems with mt exec
    - LP: #712609
  * sys_semctl: fix kernel stack leakage
    - LP: #712749
  * x25: Patch to fix bug 15678 - x25 accesses fields beyond end of packet.
    - LP: #709372
  * memory corruption in X.25 facilities parsing
    - LP: #709372
  * net: ax25: fix information leak to userland, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * net: ax25: fix information leak to userland harder, CVE-2010-3875
    - LP: #710714
    - CVE-2010-3875
  * fs/partitions/ldm.c: fix oops caused by corrupted partition table, CVE-2011-1017
    - LP: #771382
    - CVE-2011-1017
  * net: clear heap allocations for privileged ethtool actions
    - LP: #771445
  * Prevent rt_sigqueueinfo and rt_tgsigqueueinfo from spoofing the signal code
    - LP: #772543
  * Relax si_code check in rt_sigqueueinfo and rt_tgsigqueueinfo
    - LP: #772543
  * exec: make argv/envp memory visible to oom-killer
    - LP: #768408
  * next_pidmap: fix overflow condition
    - LP: #784727
  * proc: do proper range check on readdir offset
    - LP: #784727
  * mpt2sas: prevent heap overflows and unchecked reads
    - LP: #787145
  * agp: fix arbitrary kernel memory writes
    - LP: #788684
  * can: add missing socket check in can/raw release
    - LP: #788694
  * agp: fix OOM and buffer overflow
    - LP: #788700
  * do_exit(): make sure that we run with get_fs() == USER_DS - CVE-2010-4258
    - LP: #723945
    - CVE-2010-4258
  * x25: Prevent crashing when parsing bad X.25 facilities - CVE-2010-4164
    - LP: #731199
    - CVE-2010-4164
  * install_special_mapping skips security_file_mmap check - CVE-2010-4346
    - LP: #731971
    - CVE-2010-4346
  * econet: Fix crash in aun_incoming() - CVE-2010-4342
    - LP: #736394
    - CVE-2010-4342
  * sound: Prevent buffer overflow in OSS load_mixer_volumes - CVE-2010-4527
    - LP: #737073
    - CVE-2010-4527
  * irda: prevent integer underflow in IRLMP_ENUMDEVICES, CVE-2010-4529
    - LP: #737823
    - CVE-2010-4529
  * CAN: Use inode instead of kernel address for /proc file - CVE-2010-4565
    - LP: #765007...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-ti-omap4 - 2.6.35-903.24

---------------
linux-ti-omap4 (2.6.35-903.24) maverick-proposed; urgency=low

  * Release tracking bug
    - LP: #838037

  [ Upstream Kernel Changes ]

  * ipv6: make fragment identifications less predictable, CVE-2011-2699
    - LP: #827685
    - CVE-2011-2699
  * perf: Fix software event overflow, CVE-2011-2918
    - LP: #834121
    - CVE-2011-2918
  * proc: fix oops on invalid /proc/<pid>/maps access, CVE-2011-1020
    - LP: #813026
    - CVE-2011-1020

linux-ti-omap4 (2.6.35-903.23) maverick-proposed; urgency=low

  * Release tracking bug
    - LP: #829655

  [ Upstream Kernel Changes ]

  * drm/radeon/kms: check AA resolve registers on r300, CVE-2011-1016
    - LP: #745686
    - CVE-2011-1016
  * drm/radeon: fix regression with AA resolve checking, CVE-2011-1016
    - LP: #745686
    - CVE-2011-1016
  * can-bcm: fix minor heap overflow
    - LP: #690730
  * CAN: Use inode instead of kernel address for /proc file, CVE-2010-4565
    - LP: #765007
    - CVE-2010-4565
  * av7110: check for negative array offset
    - LP: #747520
  * xfs: prevent leaking uninitialized stack memory in FSGEOMETRY_V1,
    CVE-2011-0711
    - LP: #767740
    - CVE-2011-0711
  * ALSA: caiaq - Fix possible string-buffer overflow
    - LP: #747520
  * IB/cm: Bump reference count on cm_id before invoking callback,
    CVE-2011-0695
    - LP: #770369
    - CVE-2011-0695
  * RDMA/cma: Fix crash in request handlers, CVE-2011-0695
    - LP: #770369
    - CVE-2011-0695
  * Treat writes as new when holes span across page boundaries,
    CVE-2011-0463
    - LP: #770483
    - CVE-2011-0463
  * net: clear heap allocations for privileged ethtool actions
    - LP: #686158
  * usb: iowarrior: don't trust report_size for buffer size
    - LP: #747520
  * fs/partitions/ldm.c: fix oops caused by corrupted partition table,
    CVE-2011-1017
    - LP: #771382
    - CVE-2011-1017
  * Prevent rt_sigqueueinfo and rt_tgsigqueueinfo from spoofing the signal
    code
    - LP: #747520
  * Relax si_code check in rt_sigqueueinfo and rt_tgsigqueueinfo
    - LP: #747520
  * exec: make argv/envp memory visible to oom-killer
    - LP: #690730
  * next_pidmap: fix overflow condition
    - LP: #772560
  * proc: do proper range check on readdir offset
    - LP: #772560
  * ALSA: sound/pci/asihpi: check adapter index in hpi_ioctl, CVE-2011-1169
    - LP: #785331
    - CVE-2011-1169
  * mpt2sas: prevent heap overflows and unchecked reads, CVE-2011-1494
    - LP: #787145
    - CVE-2011-1494
  * agp: fix arbitrary kernel memory writes, CVE-1011-2022
    - LP: #788684
    - CVE-1011-2022
  * can: add missing socket check in can/raw release, CVE-2011-1748
    - LP: #788694
    - CVE-2011-1748
  * agp: fix OOM and buffer overflow
    - LP: #788700
  * drivers/net/cxgb3/cxgb3_main.c: prevent reading uninitialized stack
    memory - CVE-2010-3296
    - CVE-2010-3296
  * drivers/net/eql.c: prevent reading uninitialized stack memory -
    CVE-2010-3297
    - CVE-2010-3297
  * inet_diag: Make sure we actually run the same bytecode we audited,
    CVE-2010-3880
    - LP: #711865
    - CVE-2010-3880
  * setup_arg_pages: diagnose excessive argume...