Use After Free in Linux Kernel
CVE-2022-38457
A use-after-free(UAF) vulnerability was found in function 'vmw_cmd_res_check' in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel's vmwgfx driver with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS).
Vulnerability class: Use-After-Free
EPSS: 0.005 (38.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H.
Affected products
- Linux Kernel — versions v4.20-rc1
- Linux Linux_kernel — versions 6.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@openanolis.org (Permissions Required, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2022-38457?
- CVE-2022-38457 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 6.3/10. Published 2022-09-09.
- How severe is CVE-2022-38457?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2022-38457 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.