CVE-2021-33631

La vulnerabilidad de desbordamiento de enteros o envoltura en el kernel openEuler en Linux (módulos del sistema de archivos) permite el desbordamiento de enteros forzado. Este problema afecta al kernel de openEuler: desde 4.19.90 antes de 4.19.90-2401.3, desde 5.10.0-60.18.0 antes de 5.10.0-183.0 .0.

A flaw was found in the openEuler kernel in Linux filesystem modules that allows an integer overflow via mounting a corrupted filesystem. This issue affects the openEuler kernel in versions from 4.19.90 through 4.19.90-2401.3 and 5.10.0-60.18.0 through 5.10.0-183.0.0.

It was discovered that the ext4 file system implementation in the Linux kernel did not properly validate data state on write operations. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service. It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code.