VulnerabilityModified
CVE-2021-4150
A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel.
MEDIUM 5.5EPSS 0.34%
Does this matter?
Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.34% probability · 27th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2025938Issue Tracking, Third Party Advisory
- https://lkml.org/lkml/2021/10/18/485Exploit, Third Party Advisory
- https://lkml.org/lkml/2021/9/6/781Exploit, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2025938Issue Tracking, Third Party Advisory
- https://lkml.org/lkml/2021/10/18/485Exploit, Third Party Advisory
- https://lkml.org/lkml/2021/9/6/781Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.