CVE-2021-29650 — Race Condition within a Thread in Kernel

CWE-366 — Race Condition within a Thread18 documents7 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV6.7OSV4.4
EPSS
0.0%
top 91.05%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Linux KernelDebian LinuxDebian Linux+7 more
Timeline
PublishedMar 30
Latest updateMay 24

Description

An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.

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 Packages10 packages

▶NVDlinux/linux_kernel< 5.11.11
▶Debianlinux/linux_kernel< 5.10.28-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-143.147+2
▶debiandebian/linux< linux 5.10.28-1 (bookworm)

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

Patches

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

🔴Vulnerability Details

8
GHSA
GHSA-pwg2-cp6r-fqq7: 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-raspi, linux-raspi-5.4 vulnerabilities↗2021-05-19
▶
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.↗2021-05-11
▶
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities↗2021-05-11
▶

📋Vendor Advisories

9
Ubuntu
Linux kernel vulnerabilities↗2022-03-22
▶
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities↗2021-05-19
▶
Ubuntu
Linux kernel (OEM) vulnerabilities↗2021-05-11
▶
Ubuntu
Linux kernel vulnerabilities↗2021-05-11
▶
Ubuntu
Linux kernel vulnerabilities↗2021-05-11
▶