CVE-2021-38166
Last modified
CVE-2021-38166 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.6, < 5.10.60 |
| Linux | Linux Kernel | >= 5.11, < 5.13.12 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
| Debian | Debian Linux | 11.0 |
References
- https://security.netapp.com/advisory/ntap-20210909-0001/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4978Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210909-0001/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4978Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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