Loading vulnerability…
An out-of-bounds read vulnerability exists in the CoreGraphics component of Apple iOS before version 8 and Apple TV before version 7. The vulnerability can be triggered by a specially crafted PDF document, which, when processed, causes CoreGraphics to read memory outside the intended bounds. This can result in the disclosure of sensitive information or a crash of the affected application.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a proof-of-concept exploit for CVE-2014-4378, an information disclosure vulnerability in Apple's CoreGraphics library on iOS. The exploit targets MobileSafari on iOS 6.x and 7.x devices. It works by serving specially crafted PDF files (leak_code.pdf and leak_data.pdf) via a local Python CGI server (run.py). When a vulnerable device visits the index.html page, JavaScript loads the PDFs as images, triggering the CoreGraphics bug and leaking memory addresses (dyld_shared_cache and shellcode location) to the browser. These leaks can be used to bypass exploit mitigations such as ASLR, DEP, and CodeSigning, and are useful for chaining with other exploits. The repository includes Python scripts (mkLeakCode.py, mkLeakData.py) to generate the malicious PDFs, a minimal PDF library (miniPDF.py), and tools for porting the exploit to other iOS versions (tools/calcbase.py, tools/gadgets.py). The exploit is not weaponized but provides a clear demonstration of the vulnerability and the information disclosure primitive.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.