CVE-2021-4439

🗓️ 20 Jun 2024 12:15:10Reported by [email protected]Type

In the Linux kernel, a vulnerability has been resolved related to an array index out of bounds bug in isdn modul

Reporter	Title	Published	Views	Family All 66
AstraLinux	Astra Linux – Vulnerability in Linux, Linux 5.10	14 Sep 202612:01	–	astralinux
BDU FSTEC	isdn component Heap Buffer Overflow DoS	16 Sep 202400:00	–	bdu_fstec
CloudLinux	kernel: Fix of 13 CVEs	7 Oct 202410:36	–	cloudlinux
CNNVD	Linux kernel security vulnerabilities	20 Jun 202400:00	–	cnnvd
CVE	CVE-2021-4439	20 Jun 202412:07	–	cve
Cvelist	CVE-2021-4439 isdn: cpai: check ctr->cnr to avoid array index out of bound	20 Jun 202412:07	–	cvelist
Debian CVE	CVE-2021-4439	20 Jun 202412:07	–	debiancve
OpenVAS	openSUSE Security Advisory (SUSE-SU-2024:2394-1)	12 Jul 202400:00	–	openvas
OpenVAS	openSUSE Security Advisory (SUSE-SU-2024:2372-1)	12 Jul 202400:00	–	openvas
OpenVAS	openSUSE: Security Advisory for the Linux Kernel (SUSE-SU-2024:2362-1)	12 Jul 202400:00	–	openvas

NVD

Node

linux linux_kernelRange4.5–4.9.288

linux linux_kernelRange4.10–4.14.253

linux linux_kernelRange4.15–4.19.214

linux linux_kernelRange4.20–5.4.156

linux linux_kernelRange5.5–5.10.76

linux linux_kernelRange5.11–5.14.15

Source	Link
git	www.git.kernel.org/stable/c/1f3e2e97c003f80c4b087092b225c8787ff91e4d
git	www.git.kernel.org/stable/c/7f221ccbee4ec662e2292d490a43ce6c314c4594
git	www.git.kernel.org/stable/c/285e9210b1fab96a11c0be3ed5cea9dd48b6ac54
git	www.git.kernel.org/stable/c/24219a977bfe3d658687e45615c70998acdbac5a
git	www.git.kernel.org/stable/c/7d91adc0ccb060ce564103315189466eb822cc6a
git	www.git.kernel.org/stable/c/9b6b2db77bc3121fe435f1d4b56e34de443bec75
git	www.git.kernel.org/stable/c/cc20226e218a2375d50dd9ac14fb4121b43375ff
git	www.git.kernel.org/stable/c/e8b8de17e164c9f1b7777f1c6f99d05539000036

17 Jun 2026 04:19Current

CVSS 3.17.8

EPSS0.00235

SSVC