Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 5.15.62 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing ListThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing ListThird Party AdvisoryVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f054Mailing ListPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272aPatchThird Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1688/Third Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing ListThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing ListThird Party AdvisoryVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f054Mailing ListPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272aPatchThird Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1688/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2022-47942?
CVE-2022-47942 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 SM...
How severe is CVE-2022-47942?
CVE-2022-47942 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-47942?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.