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MEDIUM · 6.2

CVE-2023-40546

A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of para...

Vulnerability Description

A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.

CVSS Score

6.2

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
RedhatShim< 15.8
FedoraprojectFedora39
RedhatEnterprise Linux8.0

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2023-40546?

CVE-2023-40546 is a vulnerability with a CVSS score of 6.2 (MEDIUM). A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of para...

How severe is CVE-2023-40546?

CVE-2023-40546 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-40546?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Shim, Fedoraproject Fedora, Redhat Enterprise Linux.