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Ubuntu: USN-2891-1 (CVE-2016-1922): QEMU vulnerabilities

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Ubuntu: USN-2891-1 (CVE-2016-1922): QEMU vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
02/03/2016
Created
07/25/2018
Added
02/03/2016
Modified
09/12/2020

Description

QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.

Solution(s)

  • ubuntu-upgrade-qemu-kvm
  • ubuntu-upgrade-qemu-system
  • ubuntu-upgrade-qemu-system-aarch64
  • ubuntu-upgrade-qemu-system-arm
  • ubuntu-upgrade-qemu-system-mips
  • ubuntu-upgrade-qemu-system-misc
  • ubuntu-upgrade-qemu-system-ppc
  • ubuntu-upgrade-qemu-system-sparc
  • ubuntu-upgrade-qemu-system-x86

References

  • USN-2846-1
  • USN-2847-1
  • USN-2848-1
  • USN-2849-1
  • USN-2850-1
  • USN-2851-1
  • USN-2853-1
  • USN-2854-1
  • USN-2886-2
  • USN-2891-1
  • DSA-3469
  • DSA-3470
  • DSA-3471
  • 81058
  • GLSA-201604-01
  • CVE-2016-1922
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