CVE-2023-40549 — Out-of-bounds Read in Redhat Shim
Severity
5.5MEDIUMNVD
CNA6.2
EPSS
0.0%
top 93.00%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 29
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages2 packages
Also affects: Fedora 39, Enterprise Linux 8.0, 9.0
🔴Vulnerability Details
3GHSA▶
GHSA-86pm-fpxw-jjjc: 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↗2024-01-29
OSV▶
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↗2024-01-29
📋Vendor Advisories
3Debian▶
CVE-2023-40549: shim - An out-of-bounds read flaw was found in Shim due to the lack of proper boundary ...↗2023