Heap-based buffer overflow in OpenEXR deep scanline parsing
CVE-2023-5841 is a heap-based buffer overflow in the Academy Software Foundation OpenEXR image parsing library affecting version 3.2.1 and earlier. The flaw is caused by failure to validate the number of scanline samples in an OpenEXR file containing deep scanline data. When a vulnerable parser processes a maliciously crafted OpenEXR image, incorrect sample-count handling can result in a heap buffer overflow during deep scanline image parsing. Apple also notes this as an open-source vulnerability affecting Apple software, where processing a maliciously crafted image may lead to denial of service. The issue was fixed upstream in OpenEXR 3.2.2 and 3.1.12.
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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.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A third-party/open-source image processing vulnerability affecting Apple software, leading to denial-of-service when processing a crafted image.
Third-party/open-source vulnerability affecting Apple software; described as crafted image processing leading to denial-of-service.
A third-party/open-source vulnerability affecting Apple software; processing a maliciously crafted image may lead to denial-of-service on Apple TV.
An open-source vulnerability affecting Apple software (CVE assigned by a third party); specific technical details are not provided in the excerpt.
The version that knows your environment.
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.