CVE-2024-50281

MEDIUM EPSS 7.0%
Published Nov 19, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Nov 19, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation When sealing or unsealing a key blob we currently do not wait for the AEAD cipher operation to finish and simply return after submitting the request. If there is some load on the system we can exit before the cipher operation is done and the buffer we read from/write to is already removed from the stack. This will e.g. result in NULL pointer dereference errors in the DCP driver during blob creation. Fix this by waiting for the AEAD cipher operation to finish before resuming the seal and unseal calls.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥6.11  –  <6.11.8
linuxlinux_kernel6.10.7any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d
    Patch