Integer overflow in iPadOS and Apple iOS - CVE-2021-30860

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Main Vulnerability Database Vulnerabilities #VU56067

Integer overflow in iPadOS and Apple iOS - CVE-2021-30860

Published: August 25, 2021 / Updated: December 30, 2021


Vulnerability identifier: #VU56067
CSH Severity: Critical
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30860
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when processing PDF files within the CoreGraphics component. A remote attacker can trick the victim to open a specially crafted PDF file, trigger integer overflow and execute arbitrary code on the target system.

Note, the vulnerability is being active exploited in-the-wild via the FORCEDENTRY tool against Bahraini activists.


Affected software

iPadOS
Apple iOS
Gentoo Linux
watchOS
macOS
Oracle Solaris
Slackware Linux
poppler
app-text/poppler

How to mitigate CVE-2021-30860

Install update from vendor's website.

iPadOS - update to 14.8 18H17
Apple iOS - addressed in versions 14.8 18H17, 12.5.5 16H62
watchOS - update to 7.6.2 18U80
macOS - addressed in versions 10.15.7 19H1417, 11.6 20G165
poppler - update to 21.12.0
app-text/poppler - update to 22.09.0

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins