CVE-2023-52755: ksmbd: fix slab out of bounds write in smb_inherit_dacl()
First published: Tue May 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab out of bounds write in smb_inherit_dacl() slab out-of-bounds write is caused by that offsets is bigger than pntsd allocation size. This patch add the check to validate 3 offsets using allocation size.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.15<5.15.140 | |
| Linux Kernel | >=5.16<6.1.64 | |
| Linux Kernel | >=6.2<6.5.13 | |
| Linux Kernel | >=6.6<6.6.3 |
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Reference Links
- https://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819
- https://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa
- https://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70
- https://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb
- https://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb
Frequently Asked Questions
What is the severity of CVE-2023-52755?
The severity of CVE-2023-52755 is categorized as medium due to the potential for out-of-bounds memory access in the kSMBD component.
How do I fix CVE-2023-52755?
To fix CVE-2023-52755, upgrade your Linux kernel to versions 5.15.140, 6.1.64, or any version from 6.2 to 6.6.3 or later.
Who is affected by CVE-2023-52755?
CVE-2023-52755 affects users running specific versions of the Linux kernel, particularly those between 5.15 and 6.6.3.
What type of vulnerability is CVE-2023-52755?
CVE-2023-52755 is a memory corruption vulnerability related to slab out-of-bounds write in the Linux kernel.
When was CVE-2023-52755 resolved?
CVE-2023-52755 was resolved with a patch released in the Linux kernel after the discovery of the vulnerability.
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