Vulnerability Name:

CVE-2020-9819 (CCN-182623)

Assigned:2020-05-26
Published:2020-05-26
Updated:2021-07-21
Summary:A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/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): None
Integrity (I): None
Availibility (A): Low
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/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): None
Integrity (I): None
Availibility (A): Low
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
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-9819

Source: XF
Type: UNKNOWN
apple-ios-cve20209819-dos(182623)

Source: CCN
Type: Apple security document HT211168
About the security content of iOS 13.5 and iPadOS 13.5

Source: CCN
Type: Apple security document HT211169
About the security content of iOS 12.4.7

Source: CCN
Type: Apple security document HT211175
About the security content of watchOS 6.2.5

Source: CCN
Type: Apple security document HT211176
About the security content of watchOS 5.3.7

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211168

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211169

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211175

Source: MISC
Type: Release Notes, Vendor Advisory
https://support.apple.com/HT211176

Source: CCN
Type: CYBERSECURITY & INFRASTRUCTURE SECURITY AGENCY
KNOWN EXPLOITED VULNERABILITIES CATALOG

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:ipados:*:*:*:*:*:*:*:* (Version < 13.5)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.4.7)
  • OR cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version >= 13.0 and < 13.5)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.3.7)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version >= 6.0.0 and < 6.2.5)

    • Configuration CCN 1:
  • cpe:/o:apple:watchos:6.2.4:*:*:*:*:*:*:*
  • OR cpe:/o:apple:watchos:5.3.6:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:12.4.6:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:13.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple ipados *
    apple iphone os *
    apple iphone os *
    apple watchos *
    apple watchos *
    apple watchos 6.2.4
    apple watchos 5.3.6
    apple ios 12.4.6
    apple ios 13.4