VDB
CVE-2021-29266
CVE-2021-29266
PUBLISHED
CVSS 7.800000190734863 HIGH
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 0.32% · 24.5th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.32%
24.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-gcp | 4.15.0-1034.36, 4.15.0-1036.38, 4.15.0-1037.39 |
| Ubuntu:18.04:LTS | linux-azure-edge | 5.0.0-1012.12~18.04.2, 4.18.0-1008.8~18.04.1, 4.18.0-1007.7~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe | 5.3.0-65.59, 4.18.0-13.14~18.04.1, 4.18.0-14.15~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 5.3.0-1014.15~18.04.1, *, 5.3.0-1018.19~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 5.3.0-1011.12~18.04.1, 0, 5.3.0-1014.15~18.04.1 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.10.0-24.28~16.04.1, 4.10.0-22.24~16.04.1, 4.10.0-21.23~16.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 4.18.0-1015.16~18.04.1, 4.18.0-1013.14~18.04.1, 4.18.0-1012.13~18.04.1 |
| Ubuntu:20.04:LTS | linux-riscv-5.8 | 5.8.0-17.19~20.04.1, 5.8.0-22.24~20.04.1, * |
| Ubuntu:18.04:LTS | linux-azure-5.3 | 5.3.0-1028.29~18.04.1, 5.3.0-1031.32~18.04.1, 5.3.0-1032.33~18.04.1 |
| Ubuntu:20.04:LTS | linux-oem-5.10 | 5.10.0-1022.23, 0, 5.10.0-1008.9 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | *, *, 5.0.0-1027.30 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 | 5.8.0-41.46~20.04.1, 5.8.0-38.43~20.04.1, 5.8.0-36.40~20.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge | *, 0, 5.0.0-16.17~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws-5.3 | *, 5.3.0-1035.37, 5.3.0-1032.34~18.04.2 |
| Ubuntu:20.04:LTS | linux-riscv | 5.4.0-28.32, 5.4.0-27.31, 5.4.0-24.28 |
| Ubuntu:20.04:LTS | linux-raspi2 | 0, 5.3.0-1007.8, 5.3.0-1014.16 |
| Ubuntu:18.04:LTS | linux-oem | 4.15.0-1066.76, 4.15.0-1065.75, 4.15.0-1063.72 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1008.8, 0, 4.15.0-1002.2 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | *, 0, 5.0.0-1013.18 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1076.81, 4.15.0-1074.79, 4.15.0-1073.78 |
Timeline
- Mar 26, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Oct 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 6, 2022 EPSS Score
- Jul 8, 2022 EPSS Score
- Sep 11, 2022 EPSS Score
References
- 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://www.cve.org/CVERecord?id=CVE-2021-29266 third-party-advisory
- https://ubuntu.com/security/CVE-2021-29266 advisory
- https://ubuntu.com/security/notices/USN-4948-1 advisory
- https://ubuntu.com/security/notices/USN-4949-1 advisory