Vulnerability Description
A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges could cause a denial of service on the system. The issue results from the lack of code cleanup when device_add call fails when adding a partition to the disk.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.15 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2025938Issue TrackingThird Party Advisory
- https://lkml.org/lkml/2021/10/18/485ExploitThird Party Advisory
- https://lkml.org/lkml/2021/9/6/781ExploitThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2025938Issue TrackingThird Party Advisory
- https://lkml.org/lkml/2021/10/18/485ExploitThird Party Advisory
- https://lkml.org/lkml/2021/9/6/781ExploitThird Party Advisory
FAQ
What is CVE-2021-4150?
CVE-2021-4150 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges could cause a denial of service on the system. The issue resu...
How severe is CVE-2021-4150?
CVE-2021-4150 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-4150?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.