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llvm: llvm-project: LLVM: Denial of service via heap-based buffer overflow in Bitcode File Handler

🗓️ 11 Apr 2026 00:15:28Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 11 Views

A local attacker can trigger a heap-based overflow in LLVM Bitcode File Handler's GCRelocateInst::getBasePtr, causing denial of service.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64clang21.1.8-1.1.hum1clang-21.1.8-1.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64clang21.1.8-1.1.hum1clang-21.1.8-1.1.hum1.x86_64.rpm
Red Hat Hardened Imagesanynoarchllvm-doc21.1.8-1.1.hum1llvm-doc-21.1.8-1.1.hum1.noarch.rpm

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19 Aug 2026 20:57Current
6.1Medium risk
Vulners AI Score6.1
CVSS 21.7
CVSS 3.13.3
CVSS 44.8
CVSS 33.3
EPSS0.00124
SSVC
11