CVE-2022-48502

Se ha descubierto un problema en el kernel de Linux en las versiones anteriores a v6.2. El subsistema "ntfs3" no comprueba correctamente la corrección durante las lecturas de disco, lo que provoca una lectura fuera de los límites en "ntfs_set_ea" en "fs/ntfs3/xattr.c".

It was discovered that the NTFS file system implementation in the Linux kernel did not properly check buffer indexes in certain situations, leading to an out-of-bounds read vulnerability. A local attacker could possibly use this to expose sensitive information. Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges.