Improper Synchronization The advisory has been revoked - it doesn't affect any version of package qemu-kvm-block-gluster  (opens in a new tab)


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  • Snyk IDSNYK-RHEL8-QEMUKVMBLOCKGLUSTER-2989375
  • published23 Aug 2022
  • disclosed23 Aug 2022

Introduced: 23 Aug 2022

CVE-2022-2962  (opens in a new tab)
CWE-662  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-kvm-block-gluster package and not the qemu-kvm-block-gluster package as distributed by RHEL.

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.