CVE-2021-20292

Summary

CVECVE-2021-20292
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-28 11:15:00 UTC
Updated2023-07-28 19:35:00 UTC
DescriptionThere is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Linux Linux Kernel All All All All
Operating System Redhat Enterprise Linux 6.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2689-1] linux security update MLIST lists.debian.org
1939686 – (CVE-2021-20292) CVE-2021-20292 kernel: DRM Memory Management Double Free Privilege Escalation Vulnerability MISC bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160345 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-10065)
  • 178680 Debian Security Update for linux (DLA 2689-1)
  • 179930 Debian Security Update for linux (CVE-2021-20292)
  • 198371 Ubuntu Security Notification for Linux kernel vulnerabilities (USN-4946-1)
  • 353242 Amazon Linux Security Advisory for kernel : ALAC2012-2022-036
  • 353243 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2022-037
  • 353244 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2022-038
  • 390269 Oracle VM Server for x86 Security Update for kernel (OVMSA-2022-0031)
  • 610372 Google Pixel Android October 2021 Security Patch Missing
  • 670345 EulerOS Security Update for kernel (EulerOS-SA-2021-1879)
  • 670438 EulerOS Security Update for kernel (EulerOS-SA-2021-2062)
  • 670449 EulerOS Security Update for kernel (EulerOS-SA-2021-2051)
  • 670463 EulerOS Security Update for kernel (EulerOS-SA-2021-2221)
  • 670634 EulerOS Security Update for kernel (EulerOS-SA-2021-2392)
  • 671047 EulerOS Security Update for kernel (EulerOS-SA-2021-2588)
  • 752120 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1651-1)
  • 752125 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1686-1)
  • 752126 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1687-1)
  • 752231 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2082-1)
  • 752237 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2083-1)
  • 752240 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2103-1)
  • 752250 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2111-1)
  • 753176 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1676-1)
  • 753299 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:1669-1)
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