CVE-2023-46343: Null Pointer Dereference
First published: Tue Jan 23 2024(Updated: )
In the Linux kernel before 6.5.9, there is a NULL pointer dereference in send_acknowledge in net/nfc/nci/spi.c.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.5.9 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 |
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Reference Links
- https://lore.kernel.org/netdev/20231013184129.18738-1-krzysztof.kozlowski%40linaro.org/T/#r38bdbaf8ae15305b77f6c5bc8e15d38f405623c7
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.9
- https://github.com/torvalds/linux/commit/7937609cd387246aed994e81aa4fa951358fba41
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7937609cd387246aed994e81aa4fa951358fba41
- https://lore.kernel.org/netdev/20231013184129.18738-1-krzysztof.kozlowski@linaro.org/T/#r38bdbaf8ae15305b77f6c5bc8e15d38f405623c7
- https://launchpad.net/bugs/cve/CVE-2023-46343
- https://git.kernel.org/linus/7937609cd387246aed994e81aa4fa951358fba41
- https://security-tracker.debian.org/tracker/CVE-2023-46343
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46343
- https://nvd.nist.gov/vuln/detail/CVE-2023-46343
- https://ubuntu.com/security/CVE-2023-46343
Frequently Asked Questions
What is the severity of CVE-2023-46343?
CVE-2023-46343 is classified as a high-severity vulnerability due to the potential for a NULL pointer dereference leading to system instability.
How do I fix CVE-2023-46343?
To fix CVE-2023-46343, update your Linux kernel to version 6.5.9 or later.
Which Linux kernel versions are affected by CVE-2023-46343?
CVE-2023-46343 affects the Linux kernel versions prior to 6.5.9.
What component does CVE-2023-46343 impact?
CVE-2023-46343 impacts the send_acknowledge function in net/nfc/nci/spi.c.
What are the consequences of exploiting CVE-2023-46343?
Exploiting CVE-2023-46343 could lead to a denial of service due to a system crash from NULL pointer dereference.
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