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CVE-2020-14386

Status Candidate

Overview

A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.

Related Files

Kernel Live Patch Security Notice LSN-0071-1
Posted Sep 10, 2020
Authored by Benjamin M. Romer

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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux
advisories | CVE-2020-14386
MD5 | 4437085dab38579a25ce71c982fffd06
Ubuntu Security Notice USN-4489-1
Posted Sep 8, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4489-1 - 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 or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-14386
MD5 | 9038e89795f6761246dfe52d3c1c5711
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