linux: A flaw was found in the MCTP protocol in the Linux kernel
CVE-2023-3439 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-3439, released June 28, 2023. It is not reported as exploited. Patch Radar priority: Routine.
A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.17.6-1 | DEBIAN-CVE-2023-3439 | Jun 28, 2023 |
| linux · Debian 13.5 (trixie) | 5.17.6-1 | DEBIAN-CVE-2023-3439 | Jun 28, 2023 |
| linux · Debian 14 | 5.17.6-1 | DEBIAN-CVE-2023-3439 | Jun 28, 2023 |
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