5.5

CVE-2023-52893

In the Linux kernel, the following vulnerability has been resolved:

gsmi: fix null-deref in gsmi_get_variable

We can get EFI variables without fetching the attribute, so we must
allow for that in gsmi.

commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore
access layer") added a new get_variable call with attr=NULL, which
triggers panic in gsmi.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.0 < 4.14.304
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.271
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.230
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.165
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.90
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.8
Linux ≫ Linux Kernel Version6.2 Updaterc1
Linux ≫ Linux Kernel Version6.2 Updaterc2
Linux ≫ Linux Kernel Version6.2 Updaterc3
Linux ≫ Linux Kernel Version6.2 Updaterc4
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.01% 0.013
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.