Off-by-One Read/Write Issue in QEMU's SDHCI Device

CVE-2022-3872

What is CVE-2022-3872?

An off-by-one read/write issue has been identified in the SDHCI device of QEMU that allows for potential manipulation during the interaction with the Buffer Data Port Register. If a malicious guest sends specific data that results in an equality between data_count and block_size, it can exploit this vulnerability to crash the QEMU host process. This may lead to a denial of service condition, impacting the overall stability and availability of services that rely on the affected QEMU instance. Organizations should address this vulnerability by applying the latest updates.

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