High

Out-of-Bounds Read Information Disclosure in Adobe Acrobat and Reader 3D PDF Rendering

IdentifiersCVE-2019-7122CWE-125· Out-of-bounds Read

CVE-2019-7122 is an out-of-bounds read vulnerability in Adobe Acrobat and Reader affecting versions 2019.010.20098 and earlier, 2017.011.30127 and earlier, and 2015.006.30482 and earlier. The issue is associated with parsing embedded 3D content in PDF files, specifically the 2d.x3d module used to render ECMA-363 Universal 3D File Format resources. Available analysis indicates the flaw can be triggered through crafted 3D PDF content that references external texture images, including TIFF resources, and the crash occurs in the sandboxed process under the logged-on user context. Debugging details cited in the supporting content identify the fault near 2d!png_set_filter_heuristics, with call stack elements involving TIFF parsing routines such as TTIFFread::TifReadChunkyRGB, TTIFFread::Read, _LoadTIFF, and TIFFImport. Successful exploitation results in an out-of-bounds read and information disclosure.

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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 could lead to information disclosure. The vulnerable read occurs in the sandboxed renderer process in the context of the logged-on user, allowing an attacker to cause the application to access memory outside intended bounds and potentially disclose process memory contents. The provided advisory also notes that Acrobat/Reader vulnerabilities addressed in the same bulletin could enable arbitrary code execution or information disclosure, but for CVE-2019-7122 specifically the documented impact is information disclosure.

Mitigation

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

Apply Adobe's security updates. Where immediate patching is not possible, reduce exposure by disabling or avoiding 3D content rendering in PDF workflows, since the available analysis states default installations are not affected unless 3D content display is enabled. Organizations that routinely exchange 3D PDFs should review whether 3D rendering is enabled by default and restrict opening untrusted PDF files containing embedded 3D objects until updates are deployed.

Remediation

Patch, then assume compromise.

Upgrade Adobe Acrobat and Reader to fixed versions released by Adobe in APSB19-17. The supporting content identifies the patched versions as Acrobat/Reader DC Continuous 2019.010.20099, Acrobat/Reader 2017 Classic 2017.011.30138, and Acrobat/Reader DC Classic 2015.006.30493 for Windows and macOS. Systems running affected earlier versions should be updated through the built-in updater or enterprise software deployment mechanisms.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

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

AdobeAcrobat Dcapplication

AdobeAcrobat Reader Dcapplication

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

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app

adobe-security-bulletinsNews

Apr 9, 2019

Adobe Security Bulletin

An out-of-bounds read vulnerability in Adobe Acrobat/Reader that could lead to information disclosure.

starlabs sgNews

Apr 9, 2019

(CVE-2019-7122) Acrobat Reader DC 2d.x3d!_LoadTIFF() Out-of-Bounds Read in TTIFFread::TifReadChunkyRGB() | STAR Labs

An out-of-bounds read vulnerability in Adobe Reader DC's 3D content handling components (including 2d.x3d/rt3d) triggered via malformed embedded or external image data in 3D PDF content.

What this page doesn’t show

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Exposure mapping

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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