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SUSE: CVE-2022-2962: SUSE Linux Security Advisory

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SUSE: CVE-2022-2962: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/13/2022
Created
06/14/2023
Added
06/13/2023
Modified
06/13/2023

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)

  • suse-upgrade-qemu-tools

References

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