CVE-2021-20292
published 2021-05-28CVE-2021-20292: There 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…
PriorityP431medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.85%
54.6th percentile
There 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.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 5.7.17-1 (bookworm) | linux 5.7.17-1 (bookworm) |
| fedoraproject | fedora | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 4.15.0-143.147 | 4.15.0-143.147 |
| linux | linux_kernel | >= 0 < 4.4.0-222.255 | 4.4.0-222.255 |
| linux | linux_kernel | >= 3.3 < 4.9.298 | 4.9.298 |
| linux | linux_kernel | >= 4.10 < 4.14.263 | 4.14.263 |
| linux | linux_kernel | >= 4.15 < 4.19.140 | 4.19.140 |
| linux | linux_kernel | >= 4.20 < 5.4.59 | 5.4.59 |
| linux | linux_kernel | >= 5.5 < 5.7.16 | 5.7.16 |
| linux | linux_kernel | >= 5.8 < 5.8.2 | 5.8.2 |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian6.7MEDIUM
vendor_redhat6.7MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2022-03-22·CVSS 7.8
CVE-2020-25673 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly us
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2021-05-11·CVSS 6.7
CVE-2021-20292 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the DRM subsystem in the Linux kernel contained
double-free vulnerabilities. A privileged attacker could possibly use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-20292)
Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H. Schönherr
discovered that the Xen paravirtualization backend in the Linux kernel did
not properly propagate errors to frontend drivers in some situations. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-26930)
Jan Beulich discovered that multiple Xen backends in the Linux kernel did
not properly handle certain error conditions
Debian
CVE-2021-20292: linux - There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/g...
vendor_debian·2021·CVSS 6.7
CVE-2021-20292 [MEDIUM] CVE-2021-20292: linux - There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/g...
There 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.
Scope: local
bookworm: resolved (fixed in 5.7.17-1)
bullseye: resolved (fixed in 5.7.17-1)
forky: resolved (fixed in 5.7.17-1)
sid: resolved (fixed in 5.7.17-1)
trixie: resolved (fixed in 5.7.17-1)
Red Hat
kernel: DRM Memory Management Double Free Privilege Escalation Vulnerability
vendor_redhat·2020-08-13·CVSS 6.7
CVE-2021-20292 [MEDIUM] CWE-416 kernel: DRM Memory Management Double Free Privilege Escalation Vulnerability
kernel: DRM Memory Management Double Free Privilege Escalation Vulnerability
There 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.
There is a flaw reported 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
GHSA
GHSA-wr25-pp74-7c53: There is a flaw reported in the Linux kernel in versions before 5
ghsa_unreviewed·2022-05-24
CVE-2021-20292 [HIGH] CWE-416 GHSA-wr25-pp74-7c53: There is a flaw reported in the Linux kernel in versions before 5
There 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.
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2022-03-22·CVSS 7.8
CVE-2022-0492 [HIGH] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly use this to gain
elevated privileges. (CVE
OSV
CVE-2021-20292: In tgm_dma_tt_init of tt
osv·2021-10-01
CVE-2021-20292 CVE-2021-20292: In tgm_dma_tt_init of tt
In tgm_dma_tt_init of tt.c, there is a possible kernel memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
OSV
CVE-2021-20292: There is a flaw reported in the Linux kernel in versions before 5
osv·2021-05-28·CVSS 6.7
CVE-2021-20292 [MEDIUM] CVE-2021-20292: There is a flaw reported in the Linux kernel in versions before 5
There 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.
OSV
linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2021-05-11·CVSS 6.7
CVE-2021-20292 [MEDIUM] linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, lnux-aws-hwe, linux-azure, inux-azure-4.15, linux-dell300x, linux-gcp, linux-hwe, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the DRM subsystem in the Linux kernel contained
double-free vulnerabilities. A privileged attacker could possibly use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-20292)
Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H. Schönherr
discovered that the Xen paravirtualization backend in the Linux kernel did
not properly propagate errors to frontend drivers in some situations. An
attacker in a guest VM could possibly use this to cause a denial of service
(host domain crash). (CVE-2021-26930)
Jan Beulich discovered that multi
No detection rules found.
No public exploits indexed.
2021-05-28
Published