VDB
CVE-2021-29266
CVE-2021-29266
PUBLISHED
An issue was discovered in the Linux kernel before 5.11.9. drivers/vhost/vdpa.c has a use-after-free because v->config_ctx has an invalid value upon re-opening a character device, aka CID-f6bbf0010ba0.
EPSS 0.07% · 21.5th percentile
Risk Scores
EPSS Score
0.07%
21.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-gcp | 4.15.0-1009.9, 4.15.0-1026.27, 4.15.0-1042.45 |
| Ubuntu:18.04:LTS | linux-azure-edge | 0, 4.18.0-1007.7~18.04.1, 4.18.0-1006.6~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe | 5.0.0-29.31~18.04.1, 4.18.0-13.14~18.04.1, 4.18.0-14.15~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 5.3.0-1018.19~18.04.1, 5.3.0-1017.18~18.04.1, 5.3.0-1016.17~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | *, *, 5.3.0-1011.12~18.04.1 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.15.0-13.14~16.04.1, 4.10.0-22.24~16.04.1, 4.10.0-21.23~16.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 4.18.0-1004.5~18.04.1, *, * |
| Ubuntu:20.04:LTS | linux-riscv-5.8 | *, *, * |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 5.3.0-1031.32~18.04.1, 5.3.0-1034.35~18.04.1, 5.3.0-1035.36 |
| Ubuntu:20.04:LTS | linux-oem-5.10 | 5.10.0-1023.24, 5.10.0-1019.20, 5.10.0-1013.14 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | 0, 5.0.0-1027.30, 5.0.0-1025.28 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 | 0, *, 5.8.0-45.51~20.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge | 0, 5.0.0-16.17~18.04.1, 5.0.0-17.18~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws-5.3 | 0, 5.3.0-1019.21~18.04.1, 5.3.0-1023.25~18.04.1 |
| Ubuntu:20.04:LTS | linux-riscv | 5.4.0-39.44, 5.4.0-30.34, 5.4.0-34.38 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1007.8, 5.3.0-1014.16, 5.3.0-1015.17 |
| Ubuntu:18.04:LTS | linux-oem | 4.15.0-1028.33, 0, 4.15.0-1002.3 |
| Ubuntu:18.04:LTS | linux-azure | 5.0.0-1028.30~18.04.1, 4.15.0-1022.23, 4.15.0-1023.24 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 5.0.0-1009.14~18.04.1, 5.0.0-1008.13~18.04.1, 5.0.0-1013.18 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1073.78, 4.15.0-1072.76, 4.15.0-1070.73 |
Timeline
- Mar 26, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 22, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 25, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-29266 third-party-advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.9 third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f6bbf0010ba004f5e90c7aefdebc0ee4bd3283b9 third-party-advisory
- https://ubuntu.com/security/notices/USN-4948-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4949-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29266 third-party-advisory