CVE-2021-43389 — Out-of-bounds Read in Kernel

CWE-125 — Out-of-bounds Read23 documents8 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV6.5OSV4.7OSV4.4OSV3.3
EPSS
0.0%
top 98.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Linux KernelDebian LinuxOracle Communications Cloud Native Core Binding Support Function+3 more
Timeline
PublishedNov 4
Latest updateMay 24

Description

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages6 packages

▶NVDlinux/linux_kernel< 5.14.15
▶Debianlinux/linux_kernel< 5.10.84-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-166.174+3

Also affects: Debian Linux 10.0, 9.0, Enterprise Linux 8.0

Patches

Patch: bugzilla.redhat.com ↗Patch: git.kernel.org ↗Patch: www.oracle.com ↗

🔴Vulnerability Details

11
GHSA
GHSA-7pcx-9wjr-42p4: An issue was discovered in the Linux kernel before 5↗2022-05-24
▶
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities↗2022-03-22
▶
OSV
linux, linux-gcp, linux-gcp-5.4, linux-hwe-5.4 regression↗2022-01-12
▶
OSV
linux-oem-5.13 vulnerabilities↗2022-01-11
▶
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, l↗2022-01-06
▶

📋Vendor Advisories

11
Ubuntu
Linux kernel vulnerabilities↗2022-03-22
▶
Ubuntu
Linux kernel regression↗2022-01-12
▶
Ubuntu
Linux kernel (OEM) vulnerabilities↗2022-01-11
▶
Ubuntu
Linux kernel vulnerabilities↗2022-01-06
▶
Ubuntu
Linux kernel vulnerabilities↗2022-01-06
▶
CVE-2021-43389 — Out-of-bounds Read in Linux Kernel | cvebase