CVE-2021-1772 — HIGH (7.8) — White Hats Nepal

Q: How severe is CVE-2021-1772?

CVE-2021-1772 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-1772?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos.

Vulnerability Description

A stack overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted text file may lead to arbitrary code execution.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Ipados	< 14.4
Apple	Iphone Os	< 14.4
Apple	Mac Os X	>= 10.14, < 10.14.6
Apple	Macos	>= 11.0, < 11.2
Apple	Tvos	< 14.4
Apple	Watchos	< 7.3

Related Weaknesses (CWE)

CWE-787

References

https://support.apple.com/en-us/HT212146Release NotesVendor Advisory
https://support.apple.com/en-us/HT212147Release NotesVendor Advisory
https://support.apple.com/en-us/HT212148Release NotesVendor Advisory
https://support.apple.com/en-us/HT212149Release NotesVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-758/Third Party AdvisoryVDB Entry
https://support.apple.com/en-us/HT212146Release NotesVendor Advisory
https://support.apple.com/en-us/HT212147Release NotesVendor Advisory
https://support.apple.com/en-us/HT212148Release NotesVendor Advisory
https://support.apple.com/en-us/HT212149Release NotesVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-758/Third Party AdvisoryVDB Entry

FAQ

What is CVE-2021-1772?

CVE-2021-1772 is a vulnerability with a CVSS score of 7.8 (HIGH). A stack overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iO...

How severe is CVE-2021-1772?

CVE-2021-1772 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1772?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos.