PT-2016-2721 · Apple · Watchos+3

Tyler Bohan · Published 2016-07-22 · Updated 2025-08-23 · CVE-2016-4631

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Apple iOS versions prior to 9.3.3 Apple OS X versions prior to 10.11.6 Apple tvOS versions prior to 9.2.2 Apple watchOS versions prior to 2.2.2

Description The issue is caused by a buffer overflow in the ImageIO component. This can be exploited by a remote attacker using a specially crafted TIFF file, potentially allowing the execution of arbitrary code or causing a denial of service due to memory corruption.

Recommendations For Apple iOS versions prior to 9.3.3, update to version 9.3.3 or later. For Apple OS X versions prior to 10.11.6, update to version 10.11.6 or later. For Apple tvOS versions prior to 9.2.2, update to version 9.2.2 or later. For Apple watchOS versions prior to 2.2.2, update to version 2.2.2 or later.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2016-02123

CVE-2016-4631

Affected Products

Os X

Ios

Tvos

Watchos

References · 16

• 🔥 https://github.com/hansnielsen/tiffdisabler · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2016-4631 · Security Note
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html · Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html · Vendor Advisory
• https://support.apple.com/HT206904 · Vendor Advisory
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html · Vendor Advisory
• https://support.apple.com/HT206903 · Vendor Advisory
• https://support.apple.com/HT206905 · Vendor Advisory
• https://bdu.fstec.ru/vul/2016-02123 · Security Note
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html · Vendor Advisory
• https://support.apple.com/HT206902 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-4631 · Vendor Advisory
• https://twitter.com/sebastavar/status/1959331038301471171 · Twitter Post
• http://talosintelligence.com/reports/TALOS-2016-0171 · Note
• http://securityfocus.com/bid/91834 · Note