Vulnerability Monitor

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CVE-2021-30831

An out-of-bounds read was addressed with improved input validation. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted font may result in the disclosure of process memory.

Published

2021-10-28T19:15:09.180

Last Modified

2024-11-21T06:04:48.067

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	apple	ipados	< 15.0	Yes
Operating System	apple	iphone_os	< 15.0	Yes
Operating System	apple	macos	< 12.0.1	Yes
Operating System	apple	tvos	< 15.0	Yes
Operating System	apple	watchos	< 8.0	Yes

References

https://support.apple.com/en-us/HT212814 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212815 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212819 Release Notes, Vendor Advisory ([email protected])
https://support.apple.com/kb/HT212869 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212814 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212815 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212819 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/kb/HT212869 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)