Vulnerabilities > CVE-2023-40546 - NULL Pointer Dereference vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 21 | |
| OS | 2 | |
| OS | 1 |
Common Weakness Enumeration (CWE)
References
- https://access.redhat.com/security/cve/CVE-2023-40546
- https://bugzilla.redhat.com/show_bug.cgi?id=2241796
- https://access.redhat.com/errata/RHSA-2024:1834
- https://access.redhat.com/errata/RHSA-2024:1835
- https://access.redhat.com/errata/RHSA-2024:1873
- https://access.redhat.com/errata/RHSA-2024:1876
- https://access.redhat.com/errata/RHSA-2024:1883
- https://access.redhat.com/errata/RHSA-2024:1902
- https://access.redhat.com/errata/RHSA-2024:1903
- https://access.redhat.com/errata/RHSA-2024:1959
- https://access.redhat.com/errata/RHSA-2024:2086
- https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html