Vulnerability Details CVE-2022-2962
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.7%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2022-2962
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cpe:2.3:a:qemu:qemu:07-20-2020
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cpe:2.3:a:qemu:qemu:4.2.0
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cpe:2.3:a:qemu:qemu:4.2.0-34
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cpe:2.3:a:qemu:qemu:4.2.1
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cpe:2.3:a:qemu:qemu:5.0
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cpe:2.3:a:qemu:qemu:5.0.0
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cpe:2.3:a:qemu:qemu:5.0.1
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cpe:2.3:a:qemu:qemu:5.1.0
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cpe:2.3:a:qemu:qemu:5.1.1
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cpe:2.3:a:qemu:qemu:5.2.0
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cpe:2.3:a:qemu:qemu:5.2.50
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cpe:2.3:a:qemu:qemu:6.0.0
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cpe:2.3:a:qemu:qemu:6.1.0
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cpe:2.3:a:qemu:qemu:6.1.50
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cpe:2.3:a:qemu:qemu:6.2.0
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cpe:2.3:a:qemu:qemu:6.2.0-7
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cpe:2.3:a:qemu:qemu:7.0.0
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cpe:2.3:a:qemu:qemu:7.1.0