Vulnerability Name:

CVE-2021-1884 (CCN-200698)

Assigned:2020-12-08
Published:2021-04-26
Updated:2023-01-09
Summary:
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): 
Attack Complexity (AC): 
Privileges Required (PR): 
User Interaction (UI): 
Scope:Scope (S): 
Impact Metrics:Confidentiality (C): 
Integrity (I): 
Availibility (A): 
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): 
Attack Complexity (AC): 
Privileges Required (PR): 
User Interaction (UI): 
Scope:Scope (S): 
Impact Metrics:Confidentiality (C): 
Integrity (I): 
Availibility (A): 
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-1884

Source: XF
Type: UNKNOWN
apple-ios-cve20211884-dos(200698)

Source: CCN
Type: Apple security document HT212317
About the security content of iOS 14.5 and iPadOS 14.5

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT212530
About the security content of Security Update 2021-003 Catalina

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT212531
About the security content of Security Update 2021-004 Mojave

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:apple:ios:14.4:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Vulnerability Name:

    CVE-2021-1884 (CCN-202292)

    Assigned:2020-12-08
    Published:2021-05-24
    Updated:2021-05-24
    Summary:Apple macOS Catalina is vulnerable to a denial of service, caused by a race condition in the Heimdal component. A remote attacker could exploit this vulnerability to cause a denial of service.
    CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
    5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
    Exploitability Metrics:Attack Vector (AV): 
    Attack Complexity (AC): 
    Privileges Required (PR): 
    User Interaction (UI): 
    Scope:Scope (S): 
    Impact Metrics:Confidentiality (C): 
    Integrity (I): 
    Availibility (A): 
    7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
    6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
    Exploitability Metrics:Attack Vector (AV): 
    Attack Complexity (AC): 
    Privileges Required (PR): 
    User Interaction (UI): 
    Scope:Scope (S): 
    Impact Metrics:Confidentiality (C): 
    Integrity (I): 
    Availibility (A): 
    CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Exploitability Metrics:Access Vector (AV): Network
    Access Complexity (AC): Medium
    Authentication (Au): None
    Impact Metrics:Confidentiality (C): None
    Integrity (I): None
    Availibility (A): Partial
    7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
    Exploitability Metrics:Access Vector (AV): Network
    Access Complexity (AC): Low
    Athentication (Au): None
    Impact Metrics:Confidentiality (C): None
    Integrity (I): None
    Availibility (A): Complete
    Vulnerability Consequences:Denial of Service
    References:Source: MITRE
    Type: CNA
    CVE-2021-1884

    Source: XF
    Type: UNKNOWN
    apple-macos-cve20211884-dos(202292)

    Source: CCN
    Type: Apple security document HT212530
    About the security content of Security Update 2021-003 Catalina

    Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:apple:macos_catalina:10.15.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ios 14.4
    apple ipados 14.4
    apple macos catalina 10.15.2