VulnerabilityModified
CVE-2023-40551
An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
MEDIUM 5.1EPSS 0.40%
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
- CVSS 3.1
- 5.1 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
- EPSS
- 0.40% probability · 33th 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-2023-40551Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2259918Issue 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-2023-40551Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2259918Issue 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.