CVE-2021-3679

NameCVE-2021-3679
DescriptionA lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2785-1, DLA-2843-1, DSA-4978-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1fixed
bullseye (security)5.10.226-1fixed
bookworm6.1.106-3fixed
bookworm (security)6.1.112-1fixed
trixie6.10.11-1fixed
sid6.11.2-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.290-1DLA-2843-1
linuxsourcebuster4.19.208-1
linuxsourcebullseye5.10.46-5DSA-4978-1
linuxsource(unstable)5.14.6-1
linux-4.19sourcestretch4.19.208-1~deb9u1DLA-2785-1

Notes

https://git.kernel.org/linus/67f0d6d9883c13174669f88adac4f0ee656cc16a

Search for package or bug name: Reporting problems