Out-of-bounds Read in Linux Kernel
CVE-2022-47943
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.
Vulnerability class: Buffer Overflow
EPSS: 0.035 (88.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Linux Linux_kernel
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Mailing List, Vendor Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Mailing List, Vendor Advisory)
- cve@mitre.org (Mailing List, Third Party Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-47943?
- CVE-2022-47943 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2022-12-23.
- How severe is CVE-2022-47943?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2022-47943 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.