MediumPublic exploit

Integer Overflow in CoreGraphics PDF Parsing (iOS <8, Apple TV <7)

IdentifiersCVE-2014-4377CWE-190

An integer overflow vulnerability exists in the CoreGraphics component of Apple iOS before version 8 and Apple TV before version 7. The flaw is triggered when processing a specially crafted PDF document, leading to memory corruption. This can be exploited by remote attackers to execute arbitrary code or cause a denial of service (application crash).

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows remote attackers to execute arbitrary code with the privileges of the affected application, or to crash the application, resulting in a denial of service. The attack can be triggered by convincing a user to open a maliciously crafted PDF document.

Mitigation

If you can’t patch tonight, do this now.

Avoid opening PDF documents from untrusted sources until the device is updated. Employ mobile device management policies to restrict the opening of PDFs from unknown origins.

Remediation

Patch, then assume compromise.

Upgrade to iOS 8 or later, or Apple TV 7 or later, where the vulnerability has been patched by Apple.

PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.

VALID 1 / 1 TOTALView more in app

CVE-2014-4377MaturityOperationalVerified exploit

This repository contains a working exploit for CVE-2014-4377, a heap overflow vulnerability in Apple's CoreGraphics library affecting iOS 7.1.x devices. The exploit is delivered via a maliciously crafted PDF file, generated by 'mkCrash.py' using the 'miniPDF.py' library. The PDF is served through a CGI interface (cgi-bin/crash.pdf), and user input (shellcode address, dyld_shared_cache base, version) is taken via an HTML form (index.html). The 'run.py' script launches a CGI-capable HTTP server to facilitate local testing. An unofficial patch script ('iPhone4-7.1.2-patch.sh') is included for jailbroken iPhone 4 devices, which modifies the dyld shared cache to mitigate the vulnerability. The exploit is operational and demonstrates reliable code execution on affected devices. The repository is structured with clear separation between the exploit generator, web interface, and patching utility, and is intended for research and demonstration purposes.

feliamDisclosed Sep 17, 2014pythonbashbrowserlocal

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

AppleIphone Osoperating_system

AppleMac Os Xoperating_system

AppleTvosoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

No public activity tracked yet. Mallory keeps watching.

0 SOURCESView more in app

No public activity observed for this vulnerability.

What this page doesn’t show

The version that knows your environment.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity