Vulnerability CVE-2019-8516

Vulnerability Name:

CVE-2019-8516 (CCN-158672)

Assigned:

2019-03-25

Published:

2019-03-25

Updated:

2019-12-30

Summary:

A validation issue was addressed with improved logic. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, watchOS 5.2. Processing a maliciously crafted string may lead to a denial of service.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-20

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2019-8516

Source: XF
Type: UNKNOWN
apple-ios-cve20198516-dos(158672)

Source: CCN
Type: Apple security document HT209599
About the security content of iOS 12.2

Source: CCN
Type: Apple security document HT209601
About the security content of tvOS 12.2

Source: CCN
Type: Apple security document HT209602
About the security content of watchOS 5.2

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT209599

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT209600

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT209601

Source: MISC
Type: Vendor Advisory
https://support.apple.com/HT209602

Vulnerable Configuration:

Configuration 1:

cpe:/o:apple:iphone_os:*:*:*:*:*:*:*:* (Version < 12.2)

OR cpe:/o:apple:mac_os_x:*:*:*:*:*:*:*:* (Version < 10.14.4)

OR cpe:/o:apple:tvos:*:*:*:*:*:*:*:* (Version < 12.2)

OR cpe:/o:apple:watchos:*:*:*:*:*:*:*:* (Version < 5.2)

Denotes that component is vulnerable

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