CVE-2014-4455
Description
dyld in Apple iOS before 8.1.1 and Apple TV before 7.0.2 does not properly handle overlapping segments in Mach-O executable files, which allows local users to bypass intended code-signing restrictions via a crafted file.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
dyld in iOS and Apple TV fails to validate overlapping segments in Mach-O files, allowing local users to execute unsigned code.
Vulnerability
dyld, the dynamic linker in Apple iOS before 8.1.1 and Apple TV before 7.0.2, does not properly handle overlapping segments in Mach-O executable files. This state management issue allows crafted binaries to bypass code-signing restrictions. Affected versions: iOS 8.0 through 8.1, Apple TV 7.0 through 7.0.1. [3][4]
Exploitation
An attacker with local access to the device can craft a Mach-O file with overlapping segments. When the file is loaded by dyld, the improper handling can lead to execution of unsigned code. No additional user interaction is required beyond executing the malicious binary. [3][4]
Impact
Successful exploitation allows a local user to execute unsigned code, bypassing Apple's code-signing mechanism. This could lead to arbitrary code execution with the privileges of the user, potentially enabling further compromise of the device. [3][4]
Mitigation
Apple addressed the issue in iOS 8.1.1 and Apple TV 7.0.2. Users should update to iOS 8.1.1 or later, and Apple TV 7.0.2 or later. No workarounds are available. [3][4]
AI Insight generated on May 23, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
14cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*+ 10 more
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*range: <=7.0.1
- cpe:2.3:o:apple:tvos:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:6.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:7.0.1:*:*:*:*:*:*:*
- Range: <8.1.1
- Range: <7.0.2
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
13- lists.apple.com/archives/security-announce/2014/Nov/msg00000.htmlnvdVendor Advisory
- lists.apple.com/archives/security-announce/2014/Nov/msg00002.htmlnvdVendor Advisory
- lists.apple.com/archives/security-announce/2015/Jan/msg00000.htmlnvdVendor Advisory
- lists.apple.com/archives/security-announce/2015/Jan/msg00001.htmlnvdVendor Advisory
- support.apple.com/HT204245nvdVendor Advisory
- support.apple.com/HT204246nvdVendor Advisory
- support.apple.com/en-us/HT6590nvdVendor Advisory
- support.apple.com/en-us/HT6592nvdVendor Advisory
- www.securityfocus.com/bid/71140nvd
- www.securitytracker.com/id/1031231nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/98773nvd
- support.apple.com/en-us/HT204418nvd
- support.apple.com/en-us/HT204420nvd
News mentions
0No linked articles in our index yet.