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Package "qemu"

Name: qemu

Description:

fast processor emulator
Latest version: 1:2.11+dfsg-1ubuntu7.36
Release: bionic (18.04)
Level: updates
Repository: universe
Homepage: http://www.qemu.org/

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Repository Area Version
base main 1:2.11+dfsg-1ubuntu7
base universe 1:2.11+dfsg-1ubuntu7
security main 1:2.11+dfsg-1ubuntu7.36
security universe 1:2.11+dfsg-1ubuntu7.36
updates main 1:2.11+dfsg-1ubuntu7.36

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Changelog

Version: 1:2.11+dfsg-1ubuntu7.31 2020-08-19 18:06:23 UTC

  qemu (1:2.11+dfsg-1ubuntu7.31) bionic-security; urgency=medium

  * SECURITY UPDATE: out-of-bounds read in slirp networking
    - debian/patches/CVE-2020-10756.patch: drop bogus IPv6 messages in
      slirp/src/ip6_input.c.
    - CVE-2020-10756
  * SECURITY UPDATE: out-of-bounds read and write in sm501
    - debian/patches/CVE-2020-12829-pre1.patch: use values from the pitch
      register for 2D operations.
    - debian/patches/CVE-2020-12829-pre2.patch: implement negated
      destination raster operation mode.
    - debian/patches/CVE-2020-12829-pre3.patch: log unimplemented raster
      operation modes.
    - debian/patches/CVE-2020-12829-pre4.patch: fix support for non-zero
      frame buffer start address.
    - debian/patches/CVE-2020-12829-pre5.patch: set updated region dirty
      after 2D operation.
    - debian/patches/CVE-2020-12829-pre6.patch: adjust endianness of pixel
      value in rectangle fill.
    - debian/patches/CVE-2020-12829-pre7.patch: convert printf +
      abort to qemu_log_mask.
    - debian/patches/CVE-2020-12829-pre8.patch: shorten long
      variable names in sm501_2d_operation.
    - debian/patches/CVE-2020-12829-pre9.patch: use BIT(x) macro to
      shorten constant.
    - debian/patches/CVE-2020-12829-pre10.patch: clean up local
      variables in sm501_2d_operation.
    - debian/patches/CVE-2020-12829.patch: replace hand written
      implementation with pixman where possible.
    - debian/patches/CVE-2020-12829-2.patch: optimize small overlapping
      blits.
    - debian/patches/CVE-2020-12829-3.patch: fix bounds checks.
    - debian/patches/CVE-2020-12829-4.patch: drop unneded variable.
    - debian/patches/CVE-2020-12829-5.patch: do not allow guest to set
      invalid format.
    - debian/patches/CVE-2020-12829-6.patch: introduce variable for
      commonly used value for better readability.
    - debian/patches/CVE-2020-12829-7.patch: fix and optimize overlap
      check.
    - CVE-2020-12829
  * SECURITY UPDATE: out-of-bounds read during sdhci_write() operations
    - debian/patches/CVE-2020-13253.patch: do not switch to ReceivingData
      if address is invalid in hw/sd/sd.c.
    - CVE-2020-13253
  * SECURITY UPDATE: out-of-bounds access during es1370_write() operation
    - debian/patches/CVE-2020-13361.patch: check total frame count against
      current frame in hw/audio/es1370.c.
    - CVE-2020-13361
  * SECURITY UPDATE: out-of-bounds read via crafted reply_queue_head
    - debian/patches/CVE-2020-13362-1.patch: use unsigned type for
      reply_queue_head and check index in hw/scsi/megasas.c.
    - debian/patches/CVE-2020-13362-2.patch: avoid NULL pointer dereference
      in hw/scsi/megasas.c.
    - debian/patches/CVE-2020-13362-3.patch: use unsigned type for positive
      numeric fields in hw/scsi/megasas.c.
    - CVE-2020-13362
  * SECURITY UPDATE: NULL pointer dereference related to BounceBuffer
    - debian/patches/CVE-2020-13659.patch: set map length to zero when
      returning NULL in exec.c, include/exec/memory.h.
    - CVE-2020-13659
  * SECURITY UPDATE: out-of-bounds access via msi-x mmio operation
    - debian/patches/CVE-2020-13754-1.patch: revert accepting mismatching
      sizes in memory_region_access_valid in memory.c.
    - debian/patches/CVE-2020-13754-2.patch: accept byte and word access to
      core ACPI registers in hw/acpi/core.c.
    - CVE-2020-13754
  * SECURITY UPDATE: invalid memory copy operation via rom_copy
    - debian/patches/CVE-2020-13765.patch: add extra check to
      hw/core/loader.c.
    - CVE-2020-13765
  * SECURITY UPDATE: buffer overflow in XGMAC Ethernet controller
    - debian/patches/CVE-2020-15863.patch: check bounds in hw/net/xgmac.c.
    - CVE-2020-15863
  * SECURITY UPDATE: reachable assertion failure
    - debian/patches/CVE-2020-16092.patch: fix assertion failure in
      hw/net/net_tx_pkt.c.
    - CVE-2020-16092

 -- Marc Deslauriers <email address hidden> Tue, 11 Aug 2020 13:19:33 -0400
Source diff to previous version
CVE-2020-10756 An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echorep
CVE-2020-13253 sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS
CVE-2020-13361 In QEMU 5.0.0 and earlier, es1370_transfer_audio in hw/audio/es1370.c does not properly validate the frame count, which allows guest OS users to trig
CVE-2020-13362 In QEMU 5.0.0 and earlier, megasas_lookup_frame in hw/scsi/megasas.c has an out-of-bounds read via a crafted reply_queue_head field from a guest OS u
CVE-2020-13659 address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.
CVE-2020-13754 hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.
CVE-2020-13765 rom_copy() in hw/core/loader.c in QEMU 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid m
CVE-2020-15863 hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects t
CVE-2020-16092 In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A

Version: 1:2.11+dfsg-1ubuntu7.29 2020-07-23 21:06:24 UTC

  qemu (1:2.11+dfsg-1ubuntu7.29) bionic; urgency=medium

  * allow vhost-user driver to ignore some unneeded mem regions,
    to stay under its api limit of 8 mem regions (LP: #1887525)
    - d/p/lp1887525/0001-vhost-fix-memslot-limit-check.patch
    - d/p/lp1887525/0002-vhost-allow-backends-to-filter-memory-sections.patch

 -- Dan Streetman <email address hidden> Tue, 14 Jul 2020 09:35:16 -0400
Source diff to previous version
1887525 qemu vhost-user should ignore irrelevant mem regions because it has limit of 8 regions

Version: 1:2.11+dfsg-1ubuntu7.28 2020-06-30 12:07:02 UTC

  qemu (1:2.11+dfsg-1ubuntu7.28) bionic; urgency=medium

  * Revert the fixes in 1:2.11+dfsg-1ubuntu7.27 for LP: 1805256 as they
    were causing regressions for some iothread use cases (LP: #1885419)

 -- Christian Ehrhardt <email address hidden> Tue, 30 Jun 2020 08:57:18 +0200
Source diff to previous version
1885419 QEMU crash using virtio-scsi with iothread

Version: 1:2.11+dfsg-1ubuntu7.27 2020-06-18 11:06:38 UTC

  qemu (1:2.11+dfsg-1ubuntu7.27) bionic; urgency=medium

  * d/p/ubuntu/lp-1805256*: Fixes for QEMU on aarch64 ARM hosts
    - aio: rename aio_context_in_iothread() to in_aio_context_home_thread()
    - aio: Do aio_notify_accept only during blocking aio_poll
    - aio-posix: Assert that aio_poll() is always called in home thread
    - async: use explicit memory barriers (LP: #1805256)
    - aio-wait: delegate polling of main AioContext if BQL not held
    - aio-posix: Don't count ctx->notifier as progress when polling

 -- Rafael David Tinoco <email address hidden> Tue, 26 May 2020 17:39:21 +0000
Source diff to previous version

Version: 1:2.11+dfsg-1ubuntu7.26 2020-05-21 18:06:41 UTC

  qemu (1:2.11+dfsg-1ubuntu7.26) bionic-security; urgency=medium

  * SECURITY UPDATE: memory leak in zrle_compress_data
    - debian/patches/ubuntu/CVE-2019-20382.patch: fix memory leak when vnc
      disconnect in ui/vnc-enc-tight.c, ui/vnc-enc-zrle.inc.c, ui/vnc.c,
      ui/vnc.h.
    - CVE-2019-20382
  * SECURITY UPDATE: use-after-free in ip_reass()
    - debian/patches/ubuntu/CVE-2020-1983.patch: fix buffer handling in
      slirp/ip_input.c.
    - CVE-2020-1983

 -- Marc Deslauriers <email address hidden> Thu, 14 May 2020 13:36:56 -0400
CVE-2019-20382 QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC disconnect operation because libz is misused, resulting in a sit
CVE-2020-1983 A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.


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