First published: Thu Jan 12 2023(Updated: )
A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.
Credit: secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Kernel | >=5.18<5.19.16 | |
Linux Kernel | >=6.0<6.0.2 | |
debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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CVE-2022-3977 is classified as a high severity vulnerability due to its potential to allow local users to crash the system or escalate privileges.
To fix CVE-2022-3977, upgrade the Linux kernel to one of the patched versions such as 5.10.223-1, 5.10.226-1, 6.1.123-1, or later.
CVE-2022-3977 affects multiple versions of the Linux kernel, specifically those between 5.18 and 5.19.16 and those between 6.0 and 6.0.2.
CVE-2022-3977 is a use-after-free vulnerability found in the MCTP functionality of the Linux kernel.
No, CVE-2022-3977 can only be exploited locally by authenticated users.