CVE-2024-50215
Published: November 12, 2024Last modified: November 12, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: assign dh_key to NULL after kfree_sensitive ctrl->dh_key might be used across multiple calls to nvmet_setup_dhgroup() for the same controller. So it's better to nullify it after release on error path in order to avoid double free later in nvmet_destroy_auth(). Found by Linux Verification Center (linuxtesting.org) with Svace.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.116-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
References
- https://git.kernel.org/stable/c/c60af16e1d6cc2237d58336546d6adfc067b6b8f
- https://git.kernel.org/stable/c/c94e965f766321641ec38e4eece9ce8884543244
- https://git.kernel.org/stable/c/d2f551b1f72b4c508ab9298419f6feadc3b5d791
- https://git.kernel.org/stable/c/e61bd51e44409495d75847e9230736593e4c8710
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html