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Ubuntu: USN-5772-1 (CVE-2022-2962): QEMU vulnerabilities

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Ubuntu: USN-5772-1 (CVE-2022-2962): QEMU vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/13/2022
Created
12/14/2022
Added
12/12/2022
Modified
05/01/2023

Description

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Solution(s)

  • ubuntu-upgrade-qemu
  • 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-s390x
  • ubuntu-upgrade-qemu-system-sparc
  • ubuntu-upgrade-qemu-system-x86
  • ubuntu-upgrade-qemu-system-x86-microvm
  • ubuntu-upgrade-qemu-system-x86-xen
  • ubuntu-upgrade-ubuntu

References

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