- Vulnerability/
- CVE-2024-47408
CVE-2024-47408: net/smc: check smcd_v2_ext_offset when receiving proposal msg
First published: Sat Jan 11 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net/smc: check smcd_v2_ext_offset when receiving proposal msg When receiving proposal msg in server, the field smcd_v2_ext_offset in proposal msg is from the remote client and can not be fully trusted. Once the value of smcd_v2_ext_offset exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the value of smcd_v2_ext_offset before using it.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Kernel-devel | ||
| debian/linux | <=5.10.223-1<=5.10.234-1 | 6.1.129-1 6.1.128-1 6.12.19-1 6.12.20-1 |
| debian/linux-6.1 | 6.1.128-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/48d5a8a304a643613dab376a278f29d3e22f7c34
- https://git.kernel.org/stable/c/935caf324b445fe73d7708fae6f7176fb243f357
- https://git.kernel.org/stable/c/9ab332deb671d8f7e66d82a2ff2b3f715bc3a4ad
- https://git.kernel.org/stable/c/a36364d8d4fabb105001f992fb8ff2d3546203d6
- https://git.kernel.org/stable/c/e1cc8be2a785a8f1ce1f597f3e608602c5fccd46
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47408
- https://nvd.nist.gov/vuln/detail/CVE-2024-47408
- https://launchpad.net/bugs/cve/CVE-2024-47408
- https://security-tracker.debian.org/tracker/CVE-2024-47408
- https://ubuntu.com/security/CVE-2024-47408
- https://git.kernel.org/linus/9ab332deb671d8f7e66d82a2ff2b3f715bc3a4ad
Frequently Asked Questions
What is the severity of CVE-2024-47408?
CVE-2024-47408 is classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2024-47408?
To fix CVE-2024-47408, users should update their Linux kernel to the latest patched version provided by their distribution.
What causes CVE-2024-47408?
CVE-2024-47408 is caused by inadequate validation of the smcd_v2_ext_offset field in a proposal message received from a remote client.
Who is affected by CVE-2024-47408?
All versions of the Linux kernel that handle SMC (Shared Memory Communication) are affected by CVE-2024-47408.
What is the impact of CVE-2024-47408?
The impact of CVE-2024-47408 includes potential denial of service or arbitrary code execution due to improper validation.
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