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CanonicalCVELIST:CVE-2023-49721

HistoryFeb 14, 2024 - 9:57 p.m.

CVE-2023-49721

2024-02-1421:57:40

canonical

www.cve.org

uefi

lxd

secure boot

os-resident attacker

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

15.5%

JSON

An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.

CNA Affected

[
  {
    "packageName": "lxd",
    "product": "LXD",
    "vendor": "Canonical Ltd.",
    "platforms": [
      "Linux"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "0"
      }
    ]
  }
]

References

bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137

bugs.launchpad.net/ubuntu/+source/lxd/+bug/2040139

nvd.nist.gov/vuln/detail/CVE-2023-48733

www.openwall.com/lists/oss-security/2024/02/14/4

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

Percentile

15.5%

JSON

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