GoogleOSV:CVE-2023-52893CVE-2023-52893
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
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.
References
git.kernel.org/stable/c/32313c11bdc8a02c577abaf865be3664ab30410a
git.kernel.org/stable/c/6646d769fdb0ce4318ef9afd127f8526d1ca8393
git.kernel.org/stable/c/a769b05eeed7accc4019a1ed9799dd72067f1ce8
git.kernel.org/stable/c/ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd
git.kernel.org/stable/c/eb0421d90f916dffe96b4c049ddf01c0c50620d2
git.kernel.org/stable/c/ee5763ef829bd923033510de6d1df7c73f085e4b
git.kernel.org/stable/c/ffef77794fb5f1245c3249b86342bad2299accb5
security-tracker.debian.org/tracker/CVE-2023-52893
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low