CVE-2023-40550
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-40550
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-40550.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-40550
- Downstream
- Related
- Published
- 2024-01-29T17:15:08.773Z
- Modified
- 2025-11-15T06:48:20.026312Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
- References
-
- https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
- 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://access.redhat.com/security/cve/CVE-2023-40550
- https://bugzilla.redhat.com/show_bug.cgi?id=2259915
Affected packages
Git / github.com/rhboot/shim
Affected ranges
- Type
- GIT
- Repo
- https://github.com/rhboot/shim
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed