CVE-2021-29647 — Missing Initialization of Resource in Kernel

CWE-909 — Missing Initialization of ResourceCWE-665 — Improper InitializationCWE-200 — Sensitive Information Exposure14 documents9 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV6.5
EPSS
0.1%
top 73.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Linux KernelDebian LinuxDebian Linux+7 more
Timeline
PublishedMar 30
Latest updateMar 14

Description

An issue was discovered in the Linux kernel before 5.11.11. qrtr_recvmsg in net/qrtr/qrtr.c allows attackers to obtain sensitive information from kernel memory because of a partially uninitialized data structure, aka CID-50535249f624.

CVSS vector

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

Affected Packages10 packages

▶NVDlinux/linux_kernel< 5.11.11
▶Debianlinux/linux_kernel< 5.10.28-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-74.83
▶debiandebian/linux< linux 5.10.28-1 (bookworm)

Also affects: Debian Linux 9.0, Fedora 32, 33, 34

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

6
GHSA
GHSA-fh6x-896f-frcg: An issue was discovered in the Linux kernel before 5↗2022-05-24
▶
OSV
CVE-2021-29647: In qrtr_recvmsg of qrtr↗2021-10-01
▶
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities↗2021-06-08
▶
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.↗2021-06-08
▶
OSV
linux-oem-5.10 vulnerabilities↗2021-05-11
▶

📋Vendor Advisories

7
CISA ICS
Siemens SIMATIC↗2024-03-14
▶
Android
CVE-2021-29647: Qualcomm IPC Router support↗2021-10-01
▶
Ubuntu
Linux kernel vulnerabilities↗2021-06-08
▶
Ubuntu
Linux kernel (OEM) vulnerabilities↗2021-05-11
▶
Red Hat
kernel: information disclosure due to uninitialized data structure in qrtr_recvmsg function in net/qrtr/qrtr.c↗2021-03-14
▶