High severity · published Dec 18, 2019
CVE-2019-8657
An out-of-bounds read was addressed with improved input validation
8.8
CVSS
1.9%
EPSS
No
On KEV
Description
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. Parsing a maliciously crafted office document may lead to an unexpected application termination or arbitrary code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before 12.4 · source: NVD
MO
Mac OS X · Apple
before 10.14.6 · source: NVD
TV
Tvos · Apple
before 12.4 · source: NVD
WA
Watchos · Apple
before 5.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-8657
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-8657
Vendor Advisory
https://support.apple.com/HT210346
Vendor Advisory
https://support.apple.com/HT210348
Vendor Advisory
https://support.apple.com/HT210351
Vendor Advisory
https://support.apple.com/HT210353
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