fkie_cve-2021-4122
Vulnerability from fkie_nvd
Published
2022-08-24 16:15
Modified
2024-11-21 06:36
Severity ?
4.3 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Summary
It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2021-4122Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2031859Permissions Required, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2032401Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356cPatch, Third Party Advisory
secalert@redhat.comhttps://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotesRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2021-4122Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2031859Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2032401Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356cPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotesRelease Notes, Vendor Advisory
Impacted products
Vendor Product Version
cryptsetup_project cryptsetup *
cryptsetup_project cryptsetup *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:cryptsetup_project:cryptsetup:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "F7DA77A9-DF78-49E9-8492-8E84C70D4495",
                     versionEndExcluding: "2.3.7",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:cryptsetup_project:cryptsetup:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "DAE6BBF2-E730-4C5A-81DF-AA13449D0151",
                     versionEndExcluding: "2.4.3",
                     versionStartIncluding: "2.4.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.",
      },
      {
         lang: "es",
         value: "Se ha detectado que un encabezado LUKS especialmente diseñada podía engañar a cryptsetup para que deshabilitara el cifrado durante la recuperación del dispositivo. Un atacante con acceso físico al medio, como un disco flash, podría usar este fallo para forzar a un usuario a deshabilitar permanentemente la capa de cifrado de ese medio.",
      },
   ],
   id: "CVE-2021-4122",
   lastModified: "2024-11-21T06:36:56.853",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "PHYSICAL",
               availabilityImpact: "NONE",
               baseScore: 4.3,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "NONE",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "REQUIRED",
               vectorString: "CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
               version: "3.1",
            },
            exploitabilityScore: 0.7,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2022-08-24T16:15:09.427",
   references: [
      {
         source: "secalert@redhat.com",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://access.redhat.com/security/cve/CVE-2021-4122",
      },
      {
         source: "secalert@redhat.com",
         tags: [
            "Permissions Required",
            "Third Party Advisory",
         ],
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2031859",
      },
      {
         source: "secalert@redhat.com",
         tags: [
            "Issue Tracking",
            "Third Party Advisory",
         ],
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2032401",
      },
      {
         source: "secalert@redhat.com",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c",
      },
      {
         source: "secalert@redhat.com",
         tags: [
            "Release Notes",
            "Vendor Advisory",
         ],
         url: "https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://access.redhat.com/security/cve/CVE-2021-4122",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Permissions Required",
            "Third Party Advisory",
         ],
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2031859",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Issue Tracking",
            "Third Party Advisory",
         ],
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2032401",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Release Notes",
            "Vendor Advisory",
         ],
         url: "https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes",
      },
   ],
   sourceIdentifier: "secalert@redhat.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-345",
            },
         ],
         source: "secalert@redhat.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "CWE-345",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.