Vulnerability Description
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.
CVSS Score
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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 ListPatchVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac607Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/ac60778b87e45576d7bfdbd6f53df902654e6f0PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0006/Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1691/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 ListPatchVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac607Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/ac60778b87e45576d7bfdbd6f53df902654e6f0PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0006/Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1691/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2022-47943?
CVE-2022-47943 is a vulnerability with a CVSS score of 8.1 (HIGH). An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.
How severe is CVE-2022-47943?
CVE-2022-47943 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-47943?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.