Vulnerability Name:

CVE-2020-27905 (CCN-191310)

Assigned:2020-11-05
Published:2020-11-05
Updated:2021-07-21
Summary:A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. A malicious application may be able to execute arbitrary code with system privileges.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2020-27905

Source: XF
Type: UNKNOWN
apple-ios-cve202027905-priv-esc(191310)

Source: CCN
Type: Apple security document HT211928
About the security content of watchOS 7.1

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211928

Source: CCN
Type: Apple security document HT211929
About the security content of iOS 14.2 and iPadOS 14.2

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211929

Source: MISC
Type: Vendor Advisory
https://support.apple.com/en-us/HT211930

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.2)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.2)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 14.2)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 7.1)

  • Configuration CCN 1:
  • cpe:/o:apple:ios:14.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:14.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:7.0:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple tvos *
    apple watchos *
    apple ios 14.1
    apple ipados 14.1
    apple watchos 7.0