CVE-2023-40549: Shim: out-of-bounds read in verify_buffer_authenticode() malformed pe file
First published: Mon Oct 02 2023(Updated: )
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <15.8 | ||
| =39 | ||
| =8.0 | ||
| =9.0 |
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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-2023-40549
- https://bugzilla.redhat.com/show_bug.cgi?id=2241797
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2259923
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2234589#c17
- https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
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- vendor/redhat
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- canonical/fedoraproject fedora
- version/fedoraproject fedora/39
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- version/redhat enterprise linux/8.0
- version/redhat enterprise linux/9.0
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