Bug 2496398 - CVE-2026-13574 llvm20: LLVM: Denial of service via heap-based buffer overflow in Bitcode File Handler [fedora-all]
Summary: CVE-2026-13574 llvm20: LLVM: Denial of service via heap-based buffer overflow...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: llvm20
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Tom Stellard
QA Contact:
URL:
Whiteboard: {"flaws": ["cc104964-3d04-487f-8b2b-a...
Depends On:
Blocks: CVE-2026-13574
TreeView+ depends on / blocked
 
Reported: 2026-07-02 07:49 UTC by Ganesh
Modified: 2026-07-02 07:49 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Ganesh 2026-07-02 07:49:57 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.


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