CVE-2023-40546
Last modified
CVE-2023-40546 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Shim | < 15.8 |
| Fedoraproject | Fedora | 39 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
References
- https://access.redhat.com/security/cve/CVE-2023-40546Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2241796Issue Tracking, Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-40546Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2241796Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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