CVE-2020-14386

Se encontró un fallo en el kernel de Linux versiones anteriores a 5.9-rc4. Una corrupción de la memoria puede ser explotada para conseguir privilegios root de procesos no privilegiados. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de datos

A flaw was found in the Linux kernel. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

A security issue was fixed in the 4.15 kernel. This issue affects the 5.4 kernel as well, but a livepatch is not yet available. While work is continuing to develop livepatches for all affected kernels, due to the severity of the issue, they are releasing patches as they become ready. Or Cohen discovered that the AF_PACKET implementation in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.