Apple Multiple Products Integer Overflow Vulnerability

HIGH 7.8EXPLOITED (CISA KEV)CVE-2021-30860 · Published 24/08/2021 · updated 17/06/2026

Apple Multiple Products Integer Overflow Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 03/11/2021. Patch affected systems as an emergency.

Package	Affected versions	Patched versions
poppler freedesktop	`< 22.09.0`	`22.09.0`
xpdf xpdfreader	`< 4.04`	`4.04`

Description

An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

References

seclists.org/fulldisclosure/2021/Sep/25 · Mailing List
seclists.org/fulldisclosure/2021/Sep/26 · Mailing List
seclists.org/fulldisclosure/2021/Sep/27 · Mailing List
seclists.org/fulldisclosure/2021/Sep/28 · Mailing List
seclists.org/fulldisclosure/2021/Sep/38 · Mailing List
seclists.org/fulldisclosure/2021/Sep/39 · Mailing List
seclists.org/fulldisclosure/2021/Sep/40 · Mailing List
seclists.org/fulldisclosure/2021/Sep/50 · Mailing List
openwall.com/lists/oss-security/2022/09/02/11 · Mailing List
security.gentoo.org/glsa/202209-21 · Third Party Advisory
support.apple.com/en-us/HT212804 · Vendor Advisory
support.apple.com/en-us/HT212805 · Vendor Advisory
support.apple.com/en-us/HT212806 · Vendor Advisory
support.apple.com/en-us/HT212807 · Vendor Advisory
support.apple.com/kb/HT212824 · Vendor Advisory
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2021-30860

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free