CVE-2021-20261

Related Files

Ubuntu Security Notice USN-4904-1

Posted Apr 13, 2021

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4904-1 - Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Andrey Konovalov discovered that the video4linux driver for Hauppauge HD PVR USB devices in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local

systems | linux, ubuntu

advisories | CVE-2015-1350, CVE-2017-16644, CVE-2017-5967, CVE-2018-13095, CVE-2019-16231, CVE-2019-16232, CVE-2019-19061, CVE-2021-20261, CVE-2021-26930, CVE-2021-26931, CVE-2021-28038

SHA-256 | dee211f95352464b74d026934cda30979ea961253564ff770b2e04108c3e7b8e

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