Vulnerability Name:

CVE-2020-9950 (CCN-192623)

Assigned:2020-11-12
Published:2020-11-12
Updated:2020-12-09
Summary:A use after free issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, tvOS 14.0, Safari 14.0, iOS 14.0 and iPadOS 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-416
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-9950

Source: XF
Type: UNKNOWN
apple-safari-cve20209950-code-exec(192623)

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211843

Source: CCN
Type: Apple security document HT211844
About the security content of watchOS 7.0

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211844

Source: CCN
Type: Apple security document HT211845
About the security content of Safari 14.0

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211845

Source: CCN
Type: Apple security document HT211850
About the security content of iOS 14.0 and iPadOS 14.0

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT211850

Source: CCN
Type: ZDI-20-1394
Apple Safari TextNode Use-After-Free Information Disclosure Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apple:safari:*:*:*:*:*:*:*:* (Version < 14.0)
  • OR cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 14.0)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 14.0)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 14.0)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 7.0)

  • Configuration CCN 1:
  • cpe:/o:apple:ios:13.5.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_catalina:10.15.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_catalina:10.15.6:*:*:*:*:*:*:*
  • OR cpe:/a:apple:safari:13.1.2:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ipados:13.5.1:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:6.2.8:*:*:*:*:*:*:*
  • OR cpe:/o:apple:macos_big_sur:11.0.0:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    apple safari *
    apple ipados *
    apple iphone os *
    apple tvos *
    apple watchos *
    apple ios 13.5.1
    apple macos catalina 10.15.5
    apple macos catalina 10.15.6
    apple safari 13.1.2
    apple ipados 13.5.1
    apple watchos 6.2.8
    apple macos big sur 11.0.0