CVE-2022-47942
Linux Kernel Ksmbd SMB2 Set Info He Buffer Overflow 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.
INFO
Published Date :
Dec. 23, 2022, 4:15 p.m.
Last Modified :
May 16, 2023, 11:03 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2022-47942 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-47942.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/12/23/10 | Mailing List Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2 | Mailing List Third Party Advisory Vendor Advisory |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7 | Mailing List Patch Third Party Advisory Vendor Advisory |
| https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7 | Patch Third Party Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-22-1688/ | Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Bash script made for ksmb linux kernel 5.15 vuln check
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-47942 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-47942 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
May. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.19.2 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.62 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.18.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.19 up to (excluding) 5.19.2 -
Modified Analysis by [email protected]
Jan. 23, 2023
Action Type Old Value New Value Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-22-1688/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-22-1688/ Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Jan. 14, 2023
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-22-1688/ [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 30, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2022/12/23/10 No Types Assigned http://www.openwall.com/lists/oss-security/2022/12/23/10 Mailing List, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2 Mailing List, Third Party Advisory, Vendor Advisory Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7 No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7 Mailing List, Patch, Third Party Advisory, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7 No Types Assigned https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7 Patch, Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.19.2 -
CVE Modified by [email protected]
Dec. 25, 2022
Action Type Old Value New Value Changed Description An issue was discovered in ksmbd in the Linux kernel 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. 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. -
CVE Modified by [email protected]
Dec. 23, 2022
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2022/12/23/10 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-47942 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-47942
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.94 }} 0.14%
score
0.83323
percentile