CVE-2023-40549

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Source
https://cve.org/CVERecord?id=CVE-2023-40549
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-40549.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-40549
Downstream
AZL (5)
BELL (1)
DEBIAN (1)
OESA (4)
RHSA (9)
SUSE (4)
UBUNTU (1)
Related
ALSA (2)
SUSE (4)
Published
2024-01-29T16:29:26Z
Modified
2026-10-24T10:36:01Z
Severity
  • 6.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Shim: out-of-bounds read in verify_buffer_authenticode() malformed pe file
Details

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.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40549.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "0:15.8-3.el7"
                        },
                        {
                            "fixed": "0:15.8-1.el7"
                        },
                        {
                            "fixed": "0:15.8-4.el8_9"
                        },
                        {
                            "fixed": "0:15.8-2.el8_2"
                        },
                        {
                            "fixed": "0:15.8-2.el8_2"
                        },
                        {
                            "fixed": "0:15.8-2.el8_2"
                        },
                        {
                            "fixed": "0:15.8-2.el8_4"
                        },
                        {
                            "fixed": "0:15.8-2.el8_4"
                        },
                        {
                            "fixed": "0:15.8-2.el8_4"
                        },
                        {
                            "fixed": "0:15.8-2.el8_6"
                        },
                        {
                            "fixed": "0:15.8-2.el8"
                        },
                        {
                            "fixed": "0:15.8-2.el8"
                        },
                        {
                            "fixed": "0:15.8-4.el9_3"
                        },
                        {
                            "fixed": "0:15.8-3.el9"
                        },
                        {
                            "fixed": "0:15.8-2.el9"
                        },
                        {
                            "fixed": "0:15.8-2.el9"
                        },
                        {
                            "fixed": "0:15.8-3.el9_2"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/rhboot/shim

Affected ranges

Type
GIT
Repo
https://github.com/rhboot/shim
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5914984a1ffeab841f482c791426d7ca9935a5e6
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "15.8"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

0.*
0.3
0.4
0.5
0.7
0.8
0.9
Other
11
12
13
14
15
15.*
15.2
15.3
15.4
15.5
15.5-rc2
15.6
15.6-rc2
15.7
shim-15.*
shim-15.3-rc1
shim-15.3-rc2
shim-15.3-rc3
shim-15.3-rc4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-40549.json"