CVE-2023-40550: Shim: out-of-bound read in verify_buffer_sbat()
First published: Tue Jan 23 2024(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <15.8 | ||
| =39 | ||
| =8.0 | ||
| =9.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- 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
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2259916
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2234589#c17
- https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
- agent/weakness
- agent/title
- agent/type
- agent/description
- agent/first-publish-date
- agent/severity
- agent/author
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/softwarecombine
- agent/event
- agent/references
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-40550
- agent/last-modified-date
- collector/mitre-cve
- source/MITRE
- vendor/redhat
- canonical/redhat shim
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/39
- canonical/redhat enterprise linux
- version/redhat enterprise linux/8.0
- version/redhat enterprise linux/9.0
- package-manager/redhat