CVE-2021-28951
Last modified
CVE-2021-28951 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.11.8 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
| Netapp | A250 Firmware | All versions |
| Netapp | Aff 500f Firmware | All versions |
| Netapp | Fas 500f Firmware | All versions |
| Netapp | Cloud Backup | All versions |
| Netapp | Solidfire Baseboard Management Controller Firmware | All versions |
References
- https://security.netapp.com/advisory/ntap-20210430-0003/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210430-0003/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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