NULL pointer dereference in Linux
CVE-2024-50281
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.
EPSS: 0.002 (7.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 0e28bf61a5f9ab30be3f3b4eafb8d097e39446bb, 6.10.7, 6.11.8
- Linux Linux_kernel — versions 6.10.7, 6.12
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-50281?
- CVE-2024-50281 is a high-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 7.8/10. Published 2024-11-19.
- How severe is CVE-2024-50281?
- High severity. CVSS v3 base score is 7.8 out of 10.