VDB
CVE-2021-20292
CVE-2021-20292
PUBLISHED
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 0.11% · 28.2th percentile
Risk Scores
EPSS Score
0.11%
28.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1039.41~14.04.2, 4.15.0-1095.105~14.04.1, 4.15.0-1096.106~14.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-gcp-fips | *, 0 |
| Ubuntu:20.04:LTS | linux-riscv | 5.4.0-33.37, 5.4.0-36.41, 5.4.0-30.34 |
| Ubuntu:18.04:LTS | linux-gcp-edge | *, 4.18.0-1015.16~18.04.1, 4.18.0-1013.14~18.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-oracle | *, 4.15.0-1045.49~16.04.1, 4.15.0-1046.50~16.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-azure-fips | 5.4.0-1022.22+fips1, 0 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips | 5.4.0-1021.21+fips2, 0 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 5.0.0-1014.19, 5.0.0-1013.18, 5.0.0-1007.12~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-5.4 | 0, 5.4.0-1024.24~18.04.1, * |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-azure-fips | 4.15.0-1002.2, 0 |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 5.3.0-1012.13~18.04.1, 5.3.0-1010.11~18.04.1, 5.3.0-1009.10~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws | 4.15.0-1073.77, 4.15.0-1076.80, 4.15.0-1077.81 |
| Ubuntu:Pro:16.04:LTS | linux-kvm | 4.4.0-1035.41, 4.4.0-1046.52, 4.4.0-1047.53 |
| Ubuntu:20.04:LTS | linux-azure | 5.4.0-1022.22, 5.4.0-1023.23, 5.4.0-1025.25 |
| Ubuntu:Pro:16.04:LTS | linux-aws-hwe | 4.15.0-1097.104~16.04.1, *, * |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips | 4.15.0-2030.31, 0, 4.15.0-2000.4 |
| Ubuntu:18.04:LTS | linux-azure | *, 4.18.0-1025.27~18.04.1, 4.18.0-1024.25~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | *, 5.3.0-1027.29~18.04.1, 5.3.0-1024.26~18.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-gcp | 4.15.0-1095.108~16.04.1, *, 4.15.0-1092.105~16.04.1 |
| Ubuntu:18.04:LTS | linux-snapdragon | 4.15.0-1055.59, 4.15.0-1096.105, 4.15.0-1087.95 |
…and 49 more
Exploit Intelligence
- CVE-2021-3493.yara (github-yara)
- CVE-2021-3493.yara (github-yara)
- CVE-2021-3493.yara (github-yara)
- CVE-2021-3493.yara (github-yara)
- CVE-2021-3493.yara (github-yara)
- CVE-2021-3493.yara (github-yara)
Timeline
- Mar 24, 2021 CVE Published
- May 29, 2021 EPSS Score
- Jul 31, 2021 EPSS Score
- Sep 30, 2021 EPSS Score
- Dec 1, 2021 EPSS Score
- Jan 31, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 2, 2022 EPSS Score
- Jun 2, 2022 EPSS Score
- Aug 3, 2022 EPSS Score
- Oct 3, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-20292 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1939686 third-party-advisory
- https://git.kernel.org/linus/5de5b6ecf97a021f29403aa272cb4e03318ef586 third-party-advisory
- https://ubuntu.com/security/notices/USN-4946-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5343-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-20292 third-party-advisory