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.
References (5)
Core 5
Core References
Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/12/23/10
Mailing List, Third Party Advisory, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
Mailing List, Patch, Third Party Advisory, Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7
Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7
Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-22-1688/
Scores
CVSS v3
8.8
EPSS
0.0100
EPSS Percentile
77.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (1)
linux/linux_kernel
5.15 - 5.15.62
Published
Dec 23, 2022
Tracked Since
Feb 18, 2026