VulnerabilityModified
CVE-2022-47943
There is an out-of-bounds read and OOPS for SMB2_WRITE, when there is a large length in the zero DataOffset case.
HIGH 8.1EPSS 3.50%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 3.50% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing List, Patch, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac60778b87e45576d7bfdbd6f53df902654e6f09Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/ac60778b87e45576d7bfdbd6f53df902654e6f09Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0006/Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1691/Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing List, Patch, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac60778b87e45576d7bfdbd6f53df902654e6f09Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/ac60778b87e45576d7bfdbd6f53df902654e6f09Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230216-0006/Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-1691/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.