CVE-2022-47942: Linux Kernel ksmbd Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Fri Dec 23 2022(Updated: )
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.15<5.15.62 | |
| Linux Linux kernel | >=5.16<5.18.18 | |
| Linux Linux kernel | >=5.19<5.19.2 | |
| Linux kernel | ||
| >=5.15<5.15.62 | ||
| >=5.16<5.18.18 | ||
| >=5.19<5.19.2 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/12/23/10
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7
- https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7
- https://www.zerodayinitiative.com/advisories/ZDI-22-1688/
- https://lore.kernel.org/lkml/20220819153711.847846093@linuxfoundation.org/
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