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Mallory
HighPublic exploit

Integer Overflow in LibTIFF TIFFReadRGBATileExt

IdentifiersCVE-2022-3970CWE-190

CVE-2022-3970 is a critical integer overflow vulnerability in LibTIFF affecting the function TIFFReadRGBATileExt in libtiff/tif_getimage.c. According to the provided content, the flaw is triggered by manipulation of crafted image data during image processing, causing an integer overflow condition in the tile-reading path. Apple’s downstream advisory indicates that processing a maliciously crafted image can lead to denial of service, and attributes the issue to OSS-Fuzz. The public disclosure references patch commit 227500897dfb07fb7d27f7aa570050e62617e3be as the fix.

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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 can cause a denial of service when a vulnerable application or platform component processes a maliciously crafted image. Based on the provided content, the demonstrated impact is application or system instability/crash during image parsing rather than confirmed arbitrary code execution.

Mitigation

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

Until patched, reduce exposure by avoiding processing untrusted TIFF images, especially from remote or user-supplied sources. Disable or restrict TIFF parsing in exposed workflows where feasible, sandbox image-processing components, and use file-type validation and content filtering to limit delivery of malicious crafted images. Because the exploit is publicly disclosed, prioritizing patch deployment is the primary mitigation.

Remediation

Patch, then assume compromise.

Apply the vendor patch for LibTIFF referenced in the provided content: commit 227500897dfb07fb7d27f7aa570050e62617e3be. Where LibTIFF is consumed transitively, update to a fixed downstream package or platform release incorporating the patch. Apple indicates the issue was addressed in affected iPhone and iPad releases through improved memory handling.
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
AppleIpadosoperating_system
AppleIphone Osoperating_system
AppleMacosoperating_system
AppleSafariapplication
DebianDebian Linuxoperating_system
LibtiffLibtiffapplication
NetAppActive Iq Unified Managerapplication

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

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Vendor-by-vendor mapping

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

Social activity1

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