VulnerabilityModified
CVE-2023-40549
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.
MEDIUM 5.5EPSS 0.41%
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- redhat/shim · fedoraproject/fedora · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- 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-2023-40549Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2241797Issue Tracking, Vendor Advisory
- 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-2023-40549Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2241797Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.