Bug 2552259 (CVE-2017-20286)

Summary: CVE-2017-20286 DevIL: DevIL: Arbitrary code execution via crafted GIF image
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in DevIL. A heap-based buffer overflow exists in its palette handling routine when decoding GIF (Graphics Interchange Format) files. By convincing a user or system to process a specially crafted GIF image, an attacker could trigger out-of-bounds memory writes, potentially leading to arbitrary code execution or causing the application to crash.
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Bug Depends On: 2553641    
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Description OSIDB Bzimport 2026-10-14 14:33:15 UTC 
DevIL through 1.8.0 contains a heap-based buffer overflow in iGetPalette() in il_gif.cpp that allows attackers to write beyond a 768-byte palette buffer when loading GIF images. Attackers can supply a crafted two-frame GIF whose second frame uses disposal method 1 with a local colour table, writing up to 384 controlled bytes past the heap allocation and possibly executing code.