OSV-2022-1002 Segv on unknown address in upb_MiniTable_SetSubEnum

Not scored Published

A null pointer dereference in the upb library can cause a segmentation fault, leading to denial of service.

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

What is OSV-2022-1002?

OSV-2022-1002 is a vulnerability in upb, published on 30 Sep 2022.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51950

Crash type: Segv on unknown address
Crash state:
upb_MiniTable_SetSubEnum
_upb_MessageDef_LinkMiniTable
_upb_FileDef_Create

Which versions are affected by OSV-2022-1002?

1 open source package ship an affected version, including upb.

PackageAffectedFixed in
upb OSS-FuzzAll versionsNone

How do I fix OSV-2022-1002?

No fix has been published for OSV-2022-1002 yet. Limit exposure of the affected software until one is available.

Is OSV-2022-1002 being exploited?

There is no known exploitation of OSV-2022-1002 in the wild and no public exploit code.

Sources

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