OSV-2022-1119 Container-overflow in spvtools::opt::blockmergeutil::CanMergeWithSuccessor

Not scored Published

A container overflow in SPIRV-Tools can cause a crash when processing malicious SPIR-V code, impacting applications using the library.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
Not needed
Fix
None listed

What is OSV-2022-1119?

OSV-2022-1119 is a memory corruption vulnerability in spirv-tools, published on 31 Oct 2022.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52863

Crash type: Container-overflow READ 8
Crash state:
spvtools::opt::blockmergeutil::CanMergeWithSuccessor
std::__1::__function::__func<spvtools::opt::BlockMergePass::Process
spvtools::opt::IRContext::ProcessCallTreeFromRoots

Which versions are affected by OSV-2022-1119?

1 open source package ship an affected version, including spirv-tools.

PackageAffectedFixed in
spirv-tools OSS-FuzzAll versionsNone

How do I fix OSV-2022-1119?

No fix has been published for OSV-2022-1119 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is OSV-2022-1119 being exploited?

There is no known exploitation of OSV-2022-1119 in the wild and no public exploit code.

Sources

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