High severity · published Oct 27, 2020
CVE-2019-8840
An out-of-bounds read was addressed with improved bounds checking
8.8
CVSS
1.3%
EPSS
No
On KEV
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 11.3. Compiling with untrusted sources may lead to arbitrary code execution with user privileges.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XC
Xcode · Apple
before 11.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-8840
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-8840
Vendor Advisory
https://support.apple.com/en-us/HT210796
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