CVE-2023-52356: Libtiff: segment fault in libtiff in tiffreadrgbatileext() leading to denial of service
A segment fault (SEGV) flaw was found in libtiff that could be triggered by passing a crafted tiff file to the TIFFReadRGBATileExt() API. This flaw allows a remote attacker to cause a heap-buffer overflow, leading to a denial of service.
Security readout for executives and security teams
Plain-English summary
This issue can crash software that processes a specially crafted TIFF image using libtiff. The business impact is availability: image-processing services, document workflows, or products embedding affected Red Hat libtiff packages could be disrupted. The provided sources do not show confirmed active exploitation.
Executive priority
Treat as high-priority availability risk for systems that process untrusted image files. Prioritize internet-facing upload paths, automated document pipelines, and affected Red Hat containers, then schedule normal remediation for lower-exposure internal hosts.
Technical view
CVE-2023-52356 is a heap-buffer overflow and SEGV in libtiff’s TIFFReadRGBATileExt() API, triggered by a crafted TIFF file. It is classified as CWE-122 with CVSS 3.1 score 7.5 because availability impact is high, with no confidentiality or integrity impact described.
Likely exposure
Exposure is most likely where affected Red Hat libtiff packages or listed Red Hat container products process untrusted TIFF files. The bundle names RHEL 8, 9, 10, EUS streams, Red Hat AI Inference Server 3.2/3.3, and Red Hat Discovery 2.
Exploitation context
The CVSS vector indicates network attackability, low complexity, no privileges, and no user interaction, but the source bundle only supports denial of service. KEV is false, and no cited source in the bundle confirms active exploitation.
Researcher notes
Evidence is strongest for Red Hat-packaged exposure and the upstream libtiff issue reference. The bundle does not provide exploit maturity, detailed fixed-version mapping, or proof of code execution. RHEL 6 and 7 status is explicitly unknown in the provided data.
Mitigation direction
Apply vendor updates from the relevant Red Hat advisories for affected products.
Inventory systems and containers using libtiff or Red Hat packages listed as affected.
Limit or sandbox processing of untrusted TIFF files until updates are deployed.
Check vendor guidance for RHEL 6 and RHEL 7, which are marked unknown.
Validation and detection
Confirm installed libtiff packages and container image versions against the affected list.
Verify applicable Red Hat advisories are installed or rebuilt into runtime images.
Identify services that accept TIFF uploads or process external image content.
Confirm monitoring alerts on crashes or restarts in TIFF-processing workflows.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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cwe · low confidence lookup
CWE-122: Exact CWE lookup
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