PT-2021-8075 · Linux+2 · Linux Kernel+2
Andra Paraschiv
·
Published
2021-12-21
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Updated
2024-08-13
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CVE-2021-46927
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The vulnerability is related to the use of the
get user pages unlocked() call to handle mmap assert in the nitro enclaves component of the Linux kernel. After a specific commit, the call to get user pages() triggers the mmap assert, which can lead to a denial of service. The issue is caused by the lack of proper locking, as indicated by the mmap assert locked() function. The vulnerability can be exploited by an attacker to cause a denial of service.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Red Os
Suse