CVE-2021-44733 — Race Condition in Kernel
Severity
7.0HIGHNVD
OSV7.1OSV6.5OSV4.7
EPSS
0.3%
top 48.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 22
Latest updateFeb 14
Description
A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9
Affected Packages4 packages
Also affects: Debian Linux 10.0, 11.0, 9.0, Enterprise Linux 8.0, Fedora 35
🔴Vulnerability Details
9OSV▶
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-azure-fde, linux-gcp, linux-gcp-5.4, linux-gke, lnux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4↗2022-03-22
OSV▶
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-hwe, linux-gcp, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2022-03-22
OSV▶
linux, linux-aws, linux-aws-5.13, linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-kvm, linux-oracle, linux-raspi vulnerabilities↗2022-03-22