CVE-2022-47929CWE-476

CVE-2022-47929

Medium · published January 18, 2023

CVSS v3.1
5.5
EPSS
1%
Percentile
62.9
In the wild
Unconfirmed
What it is

In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01011 · 62.9th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2023-01-18T02:15Z
Affected products (2)
ProductVersionsFixed in
linux/linux_kernel< 6.1.66.1.6
debian/debian_linuxall versions—
References (16)
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 · [email protected]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 · [email protected]https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html · [email protected]https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html · [email protected]https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html · [email protected]https://www.debian.org/security/2023/dsa-5324 · [email protected]https://www.spinics.net/lists/netdev/msg555705.html · [email protected]https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html · af854a3a-2127-422b-91ae-364da2661108https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5324 · af854a3a-2127-422b-91ae-364da2661108https://www.spinics.net/lists/netdev/msg555705.html · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-769027.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 17 JAN 00:00Z
    In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service…
    cvelistv5