FKIE_CVE-2020-13844

Vulnerability from fkie_nvd - Published: 2020-06-08 23:15 - Updated: 2026-06-17 02:53
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."
References
cve@mitre.orghttp://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityVendor Advisory
cve@mitre.orghttps://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculationVendor Advisory
cve@mitre.orghttps://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questionsVendor Advisory
cve@mitre.orghttps://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabilityVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculationVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questionsVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.htmlPatch, Third Party Advisory
Impacted products
Vendor Product Version
arm cortex-a32_firmware -
arm cortex-a32 -
arm cortex-a35_firmware -
arm cortex-a35 -
arm cortex-a53_firmware -
arm cortex-a53 -
arm cortex-a57_firmware -
arm cortex-a57 -
arm cortex-a72_firmware -
arm cortex-a72 -
arm cortex-a73_firmware -
arm cortex-a73 -
arm cortex-a34_firmware -
arm cortex-a34 -
opensuse leap 15.1
opensuse leap 15.2
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a32_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "2A2DAFCD-0C51-412A-9CC9-F55112A93958",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a32:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "049894EE-B2FB-45D9-A372-098F169075AB",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a35_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "75367522-84C2-4E5C-8A4C-1CA351D152E6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a35:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "C1CA84F9-EC36-4A57-BABC-8E74770D5327",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a53_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "35B01CAB-2DD1-47D5-A331-B6C7A658C5D5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a53:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "9FF65826-F828-421F-8009-5AA5D25387E6",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a57_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "68D895EC-B0A9-4292-AC64-60673F72C765",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a57:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B00CD88D-5649-403F-A55A-BD49427D30FA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a72_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "38768B2B-F1A3-4A76-8716-9520CA075F3D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a72:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "16E23102-964E-485D-8EFF-4B1BBFE6EDE4",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a73_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7173A6DC-4D4E-424C-A922-C16D67627834",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a73:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "33B1374D-59E8-4FE5-AC6C-0323AB1DD60D",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arm:cortex-a34_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "54C5AF1F-673C-4AB6-98B4-53407C1A88EA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:arm:cortex-a34:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "075E31EF-1A88-4B29-99A4-475942FF5C7B",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "B009C22E-30A4-4288-BCF6-C3E81DEAF45A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka \"straight-line speculation.\""
    },
    {
      "lang": "es",
      "value": "Las implementaciones principales de Arm Armv8-A, que usan la ejecuci\u00f3n especulativa m\u00e1s all\u00e1 de los cambios incondicionales en el flujo de control pueden permitir una divulgaci\u00f3n no autorizada de informaci\u00f3n a un atacante con acceso de usuario local por medio de un an\u00e1lisis de canal lateral, tambi\u00e9n se conoce como \"straight-line speculation.\""
    }
  ],
  "id": "CVE-2020-13844",
  "lastModified": "2026-06-17T02:53:45.877",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-06-08T23:15:10.047",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.