Vulnerability Name:

CVE-2019-8646 (CCN-164191)

Assigned:2019-07-22
Published:2019-07-22
Updated:2019-12-19
Summary:An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. A remote attacker may be able to leak memory.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-125
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2019-8646

Source: XF
Type: UNKNOWN
apple-ios-cve20198646-info-disc(164191)

Source: CCN
Type: Packet Storm Security [07-30-2019]
iMessage NSKeyedUnarchiver Deserialization

Source: CCN
Type: Apple security document HT210346
About the security content of iOS 12.4

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT210346

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT210348

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT210351

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT210353

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [07-30-2019]

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.4)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.14.6)
  • OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 12.4)
  • OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.3)

    • Configuration CCN 1:
  • cpe:/o:apple:ios:12.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    apple iphone os *
    apple mac os x *
    apple tvos *
    apple watchos *
    apple iphone os 12.3