// For flags

CVE-2023-52893

gsmi: fix null-deref in gsmi_get_variable

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
-
Attack Complexity
-
Privileges Required
-
User Interaction
-
Scope
-
Confidentiality
-
Integrity
-
Availability
-
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-08-21 CVE Reserved
  • 2024-08-21 CVE Published
  • 2024-09-12 EPSS Updated
  • 2024-11-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
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>= 3.0 < 4.14.304
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 4.14.304"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
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>= 3.0 < 4.19.271
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 4.19.271"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.0 < 5.4.230
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 5.4.230"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.0 < 5.10.165
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 5.10.165"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.0 < 5.15.90
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 5.15.90"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.0 < 6.1.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 6.1.8"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 3.0 < 6.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.0 < 6.2"
en
Affected