CVE-2022-47943: Linux Kernel ksmbd Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Fri Dec 23 2022(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.15<5.15.62 | |
| Linux Kernel | >=5.16<5.18.18 | |
| Linux Kernel | >=5.19<5.19.2 | |
| Linux kernel |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/12/23/10
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac60778b87e45576d7bfdbd6f53df902654e6f09
- https://github.com/torvalds/linux/commit/ac60778b87e45576d7bfdbd6f53df902654e6f09
- https://security.netapp.com/advisory/ntap-20230216-0006/
- https://www.zerodayinitiative.com/advisories/ZDI-22-1691/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ac60778b87e45576d7bfdbd6f53df902654e6f09
Frequently Asked Questions
What is the severity of CVE-2022-47943?
CVE-2022-47943 is considered to be of medium severity due to its potential to allow remote information disclosure.
How do I fix CVE-2022-47943?
To mitigate CVE-2022-47943, update the Linux kernel to version 5.19.2 or later.
Which versions of Linux Kernel are affected by CVE-2022-47943?
CVE-2022-47943 affects Linux Kernel versions 5.15 to 5.19 before 5.19.2.
What type of attack can exploit CVE-2022-47943?
CVE-2022-47943 can be exploited by remote attackers to perform an out-of-bounds read and potentially disclose sensitive information.
Is CVE-2022-47943 a local or remote vulnerability?
CVE-2022-47943 is a remote vulnerability, allowing attackers to exploit the issue from a remote location.
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