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OSV-2021-1153

Heap-buffer-overflow in hb_array_t<OT::IntType<unsigned int, 4u> const> hb_array_t<OT::IntType<unsigned

No scoreFix available

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37348

Crash type: Heap-buffer-overflow READ 4
Crash state:
hb_array_t<OT::IntType<unsigned int, 4u> const> hb_array_t<OT::IntType<unsigned 
OT::UnsizedArrayOf<OT::IntType<unsigned int, 4u> >::copy
_hb_head_t<OT::UnsizedArrayOf<OT::IntType<unsigned int, 4u> >*, decltype

What each source reports

OSV No score

Heap-buffer-overflow in hb_array_t<OT::IntType<unsigned int, 4u> const> hb_array_t<OT::IntType<unsigned

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37348

Crash type: Heap-buffer-overflow READ 4
Crash state:
hb_array_t<OT::IntType<unsigned int, 4u> const> hb_array_t<OT::IntType<unsigned 
OT::UnsizedArrayOf<OT::IntType<unsigned int, 4u> >::copy
_hb_head_t<OT::UnsizedArrayOf<OT::IntType<unsigned int, 4u> >*, decltype
Record
OSV-2021-1153
Updated
2026-11-02

Affected packages

Affected packages
PackageAffectedFixed
harfbuzz
OSS-Fuzz
Listed versions, plus commit ranges
2.9.0
None known

History

History
RecordedChangedSources
first indexedOSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

OSV-2021-1153 is a vulnerability with no CVSS score yet in harfbuzz, published August 20, 2021. No source lists public exploit code. A source reports a fix.

References

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