VDB
CVE-2021-20292
CVE-2021-20292
PUBLISHED
CVSS 6.699999809265137 MEDIUM
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.
EPSS 0.85% · 58.2th percentile
Risk Scores
CVSS 3.1
6.699999809265137
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.85%
58.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1039.41~14.04.2, 4.15.0-1036.38~14.04.2, 4.15.0-1035.36~14.04.2 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-gcp-fips | 0, 5.4.0-1021.21+fips1 |
| Ubuntu:20.04:LTS | linux-riscv | 5.4.0-26.30, 5.4.0-39.44, 5.4.0-28.32 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 4.18.0-1011.12~18.04.1, 4.18.0-1009.10~18.04.1, 4.18.0-1007.8~18.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-oracle | 4.15.0-1008.10~16.04.1, 4.15.0-1010.12~16.04.1, 4.15.0-1039.43~16.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-azure-fips | 0, 5.4.0-1022.22+fips1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips | 0, 5.4.0-1021.21+fips2 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 5.0.0-1011.16, 5.0.0-1014.19, 5.0.0-1013.18 |
| Ubuntu:18.04:LTS | linux-gcp-5.4 | 5.4.0-1019.19~18.04.2, 5.4.0-1024.24~18.04.1, 0 |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-azure-fips | 4.15.0-1002.2, 0 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 5.3.0-1010.11~18.04.1, 5.3.0-1028.29~18.04.1, 0 |
| Ubuntu:18.04:LTS | linux-aws | 4.15.0-1031.33, 0, 4.15.0-1001.1 |
| Ubuntu:Pro:16.04:LTS | linux-kvm | 4.4.0-1088.97, 4.4.0-1079.86, 4.4.0-1069.76 |
| Ubuntu:20.04:LTS | linux-azure | 0, 5.4.0-1006.6, 5.4.0-1016.16 |
| Ubuntu:Pro:16.04:LTS | linux-aws-hwe | 4.15.0-1065.69~16.04.1, 4.15.0-1097.104~16.04.1, 4.15.0-1088.93~16.04.1 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips | 4.15.0-2039.41, 4.15.0-2038.40, 4.15.0-2040.42 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1036.38, 4.18.0-1018.18~18.04.1, 4.15.0-1003.3 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 5.3.0-1030.32~18.04.1, 5.3.0-1027.29~18.04.1, 5.3.0-1024.26~18.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-gcp | 4.15.0-1086.98~16.04.1, 4.15.0-1093.106~16.04.1, 0 |
| Ubuntu:18.04:LTS | linux-snapdragon | 4.15.0-1067.74, 4.15.0-1069.76, 4.15.0-1070.77 |
…and 49 more
Timeline
- Mar 24, 2021 CVE Published
- May 29, 2021 EPSS Score
- Aug 1, 2021 EPSS Score
- Oct 2, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 3, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 7, 2022 EPSS Score
- Jun 8, 2022 EPSS Score
- Oct 11, 2022 EPSS Score
- Dec 12, 2022 EPSS Score
References
- https://ubuntu.com/security/notices/USN-5343-1 advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1939686 third-party-advisory
- https://git.kernel.org/linus/5de5b6ecf97a021f29403aa272cb4e03318ef586 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-20292 third-party-advisory
- https://ubuntu.com/security/CVE-2021-20292 advisory
- https://ubuntu.com/security/notices/USN-4946-1 advisory