CVE-2022-4129CWE-667

CVE-2022-4129

Medium · published November 29, 2022

CVSS v3.1
5.5
EPSS
0%
Percentile
6.9
In the wild
Unconfirmed
What it is

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

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
0.00176 · 6.9th percentile
Weakness
CWE-667 · Improper Locking
Published
2022-11-29T03:15Z
Affected products (4)
ProductVersionsFixed in
linux/layer_2_tunneling_protocol< 6.06.0
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
References (13)
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7X5SPXMXXFANDASPCKER2JIQO2F3UHCP/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AM5KFIE6JNZXHBA5A2KYDZAT3MEX2B67/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JOKXNIM2R4FQCDRQV67UMAY6EBC72QFG/ · [email protected]https://lore.kernel.org/all/20221114191619.124659-1-jakub%40cloudflare.com/t · [email protected]https://lore.kernel.org/netdev/20221121085426.21315-1-jakub%40cloudflare.com/t · [email protected]https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7X5SPXMXXFANDASPCKER2JIQO2F3UHCP/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AM5KFIE6JNZXHBA5A2KYDZAT3MEX2B67/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JOKXNIM2R4FQCDRQV67UMAY6EBC72QFG/ · af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/all/20221114191619.124659-1-jakub%40cloudflare.com/t · af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/netdev/20221121085426.21315-1-jakub%40cloudflare.com/t · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 28 NOV 00:00Z
    A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP)
    cvelistv5