USN-6410-1
- Source
- https://ubuntu.com/security/notices/USN-6410-1
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6410-1.json
- JSON Data
- https://api.osv.dev/v1/vulns/USN-6410-1
- Upstream
- Related
- Published
- 2023-10-04T01:31:42.004586Z
- Modified
- 2025-10-13T04:36:37Z
- Summary
- grub2-signed, grub2-unsigned vulnerabilities
- Details
-
It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds write. A local attacker could potentially use this to perform arbitrary code execution bypass and bypass secure boot protections. (CVE-2023-4692)
It was discovered that a specially crafted file system image could cause an out-of-bounds read. A physically-present attacker could possibly use this to leak sensitive information to the GRUB pager. (CVE-2023-4693)
- References
Affected packages
Ubuntu:20.04:LTS / grub2-signed
Package
- Name
- grub2-signed
- Purl
- pkg:deb/ubuntu/grub2-signed@1.187.6~20.04.1?arch=source&distro=focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.187.6~20.04.1
Affected versions
1.*
1.128
1.129
1.130
1.131
1.133
1.134
1.135
1.136
1.137
1.138
1.139
1.140
1.141
1.142
1.142.1
1.142.3
1.142.4
1.142.5
1.142.6
1.142.8
1.142.9
1.142.10
1.142.11
1.167
1.167.2
1.173.2~20.04.1
1.173.4
1.187.2~20.04.2
1.187.3~20.04.1
1.187.4~20.04.1
Ecosystem specific
{
"binaries": [
{
"binary_name": "grub-efi-amd64-signed",
"binary_version": "1.187.6~20.04.1+2.06-2ubuntu14.4"
},
{
"binary_name": "grub-efi-arm64-signed",
"binary_version": "1.187.6~20.04.1+2.06-2ubuntu14.4"
}
],
"availability": "No subscription required"
}
Database specific
cves_map
{
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-4692"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-4693"
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
Ubuntu:22.04:LTS / grub2-signed
Package
- Name
- grub2-signed
- Purl
- pkg:deb/ubuntu/grub2-signed@1.187.6?arch=source&distro=jammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.187.6
Affected versions
1.*
1.173
1.174
1.176
1.177
1.178
1.179
1.180
1.182~22.04.1
1.187.2
1.187.3~22.04.1
1.187.4~22.04.1
Ecosystem specific
{
"binaries": [
{
"binary_name": "grub-efi-amd64-signed",
"binary_version": "1.187.6+2.06-2ubuntu14.4"
},
{
"binary_name": "grub-efi-arm64-signed",
"binary_version": "1.187.6+2.06-2ubuntu14.4"
}
],
"availability": "No subscription required"
}
Database specific
cves_map
{
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-4692"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-4693"
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
Ubuntu:22.04:LTS / grub2-unsigned
Package
- Name
- grub2-unsigned
- Purl
- pkg:deb/ubuntu/grub2-unsigned@2.06-2ubuntu14.4?arch=source&distro=jammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.06-2ubuntu14.4
Affected versions
2.*
2.04-1ubuntu47
2.04-1ubuntu48
2.06-2ubuntu3
2.06-2ubuntu4
2.06-2ubuntu5
2.06-2ubuntu6
2.06-2ubuntu7
2.06-2ubuntu10
2.06-2ubuntu14
2.06-2ubuntu14.1
2.06-2ubuntu14.2
Ecosystem specific
{
"binaries": [
{
"binary_name": "grub-efi-amd64",
"binary_version": "2.06-2ubuntu14.4"
},
{
"binary_name": "grub-efi-amd64-bin",
"binary_version": "2.06-2ubuntu14.4"
},
{
"binary_name": "grub-efi-arm64",
"binary_version": "2.06-2ubuntu14.4"
},
{
"binary_name": "grub-efi-arm64-bin",
"binary_version": "2.06-2ubuntu14.4"
}
],
"availability": "No subscription required"
}
Database specific
cves_map
{
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-4692"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-4693"
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}