Vulnerability Name:

CVE-2016-4711 (CCN-117188)

Assigned:2016-09-21
Published:2016-09-21
Updated:2017-07-30
Summary:CCrypt in corecrypto in CommonCrypto in Apple iOS before 10 and OS X before 10.12 allows attackers to discover cleartext information by leveraging a function call that specifies the same buffer for input and output.
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)
6.5 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:U/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
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN 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:U/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
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
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
CWE-20
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2016-4711

Source: APPLE
Type: Mailing List, Vendor Advisory
APPLE-SA-2016-09-20

Source: APPLE
Type: Mailing List, Vendor Advisory
APPLE-SA-2016-09-20-3

Source: BID
Type: UNKNOWN
93056

Source: SECTRACK
Type: UNKNOWN
1036858

Source: XF
Type: UNKNOWN
apple-macosx-cve20164711-info-disc(117188)

Source: CCN
Type: Apple security document HT207143
About the security content of iOS 10

Source: CCN
Type: Apple Web site
About the security content of macOS Sierra 10.12

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207143

Source: CONFIRM
Type: Vendor Advisory
https://support.apple.com/HT207170

Vulnerable Configuration:Configuration 1:
  • cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version <= 9.3.5)
  • OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version <= 10.11.6)

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