ubuntu-cve-2023-40548
Vulnerability from osv_ubuntu
Published
2024-01-23 00:00
Modified
2025-11-21 05:21
Summary
Details
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
Severity
7.4 (High)
7.4 (High)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "shim",
"binary_version": "13-0ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "shim",
"purl": "pkg:deb/ubuntu/shim@13-0ubuntu2?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4-0ubuntu4",
"0.8-0ubuntu2",
"0.9+1474479173.6c180c6-1ubuntu1",
"13-0ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "shim-signed",
"binary_version": "1.33.1~14.04.5+13-0ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "shim-signed",
"purl": "pkg:deb/ubuntu/shim-signed@1.33.1~14.04.5?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3",
"1.4",
"1.5",
"1.6",
"1.9",
"1.17~14.04.1",
"1.18~14.04.1",
"1.19~14.04.1",
"1.32~14.04.2",
"1.33.1~14.04.2",
"1.33.1~14.04.3",
"1.33.1~14.04.4",
"1.33.1~14.04.5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "shim",
"binary_version": "15.4-0ubuntu7"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "shim",
"purl": "pkg:deb/ubuntu/shim@15.4-0ubuntu7?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.8-0ubuntu2",
"0.9+1474479173.6c180c6-1ubuntu1",
"13-0ubuntu2",
"15+1533136590.3beb971-0ubuntu1",
"15+1552672080.a4a1fbe-0ubuntu2",
"15.4-0ubuntu7"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "shim-signed",
"binary_version": "1.33.1~16.04.10+15.4-0ubuntu7"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "shim-signed",
"purl": "pkg:deb/ubuntu/shim-signed@1.33.1~16.04.10?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.11",
"1.12",
"1.17~16.04.1",
"1.18~16.04.1",
"1.19~16.04.1",
"1.27~16.04.1",
"1.28~16.04.1",
"1.32~16.04.1",
"1.33.1~16.04.1",
"1.33.1~16.04.2",
"1.33.1~16.04.3",
"1.33.1~16.04.4",
"1.33.1~16.04.5",
"1.33.1~16.04.6",
"1.33.1~16.04.10"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "shim",
"binary_version": "15.7-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "shim",
"purl": "pkg:deb/ubuntu/shim@15.7-0ubuntu1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9+1474479173.6c180c6-1ubuntu1",
"13-0ubuntu2",
"15+1533136590.3beb971-0ubuntu1",
"15+1552672080.a4a1fbe-0ubuntu2",
"15.4-0ubuntu7",
"15.4-0ubuntu9",
"15.7-0ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "shim-signed",
"binary_version": "1.37~18.04.13+15.7-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "shim-signed",
"purl": "pkg:deb/ubuntu/shim-signed@1.37~18.04.13?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.32",
"1.33.1",
"1.34.4",
"1.34.5",
"1.34.6",
"1.34.7",
"1.34.8",
"1.34.9",
"1.34.9.1",
"1.34.9.2",
"1.37~18.04.1",
"1.37~18.04.2",
"1.37~18.04.3",
"1.37~18.04.6",
"1.37~18.04.8",
"1.37~18.04.10",
"1.37~18.04.11",
"1.37~18.04.13"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "shim",
"binary_version": "15.8-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "shim",
"purl": "pkg:deb/ubuntu/shim@15.8-0ubuntu1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "15.8-0ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"15+1533136590.3beb971-0ubuntu1",
"15+1552672080.a4a1fbe-0ubuntu1",
"15+1552672080.a4a1fbe-0ubuntu2",
"15.4-0ubuntu7",
"15.4-0ubuntu9",
"15.7-0ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "shim-signed",
"binary_version": "1.40.10+15.8-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "shim-signed",
"purl": "pkg:deb/ubuntu/shim-signed@1.40.10?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.40.10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.39",
"1.40",
"1.40.3",
"1.40.4",
"1.40.6",
"1.40.7",
"1.40.9"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "shim",
"binary_version": "15.8-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "shim",
"purl": "pkg:deb/ubuntu/shim@15.8-0ubuntu1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "15.8-0ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"15.4-0ubuntu9",
"15.7-0ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "shim-signed",
"binary_version": "1.51.4+15.8-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "shim-signed",
"purl": "pkg:deb/ubuntu/shim-signed@1.51.4?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.51.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.51",
"1.51.3"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "shim",
"binary_version": "15.8-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "shim",
"purl": "pkg:deb/ubuntu/shim@15.8-0ubuntu1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "15.8-0ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"15.7-0ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "shim-signed",
"binary_version": "1.58+15.8-0ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "shim-signed",
"purl": "pkg:deb/ubuntu/shim-signed@1.58?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.58"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.56",
"1.57"
]
}
],
"aliases": [],
"details": "A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.",
"id": "UBUNTU-CVE-2023-40548",
"modified": "2025-11-21T05:21:35Z",
"published": "2024-01-23T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-40548"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40548"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-40548"
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…