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cveAppleCVE-2021-1766
HistoryApr 02, 2021 - 6:15 p.m.

CVE-2021-1766

2021-04-0218:15:20
apple
web.nvd.nist.gov
69
2
cve-2021-1766
macos big sur
security update
catalina
mojave
watchos
tvos
ios
ipados
denial of service

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.4

Confidence

High

EPSS

0.001

Percentile

28.0%

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to a denial of service.

Affected configurations

Nvd
Vulners
Node
appleipadosRange<14.4
OR
appleiphone_osRange<14.4
OR
applemac_os_xRange10.1410.14.6
OR
applemac_os_xRange10.1510.15.7
OR
applemac_os_xMatch10.14.6-
OR
applemac_os_xMatch10.14.6security_update_2019-004
OR
applemac_os_xMatch10.14.6security_update_2019-005
OR
applemac_os_xMatch10.14.6security_update_2019-006
OR
applemac_os_xMatch10.14.6security_update_2019-007
OR
applemac_os_xMatch10.14.6security_update_2020-001
OR
applemac_os_xMatch10.14.6security_update_2020-002
OR
applemac_os_xMatch10.14.6security_update_2020-003
OR
applemac_os_xMatch10.14.6security_update_2020-004
OR
applemac_os_xMatch10.14.6security_update_2020-005
OR
applemac_os_xMatch10.14.6security_update_2020-006
OR
applemac_os_xMatch10.14.6security_update_2020-007
OR
applemac_os_xMatch10.14.6supplemental_update
OR
applemac_os_xMatch10.14.6supplemental_update_2
OR
applemac_os_xMatch10.15.7-
OR
applemac_os_xMatch10.15.7supplemental_update
OR
applemacosRange11.011.2
OR
appletvosRange<14.4
OR
applewatchosRange<7.3
VendorProductVersionCPE
appleipados*cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
appleiphone_os*cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
applemac_os_x*cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*
applemac_os_x10.14.6cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*
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CNA Affected

[
  {
    "product": "iOS and iPadOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "11.2",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "7.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.4

Confidence

High

EPSS

0.001

Percentile

28.0%