OSV-2023-1173 Heap-buffer-overflow in fill_lines

Not scored Published

A heap buffer overflow in the Ruby interpreter's backtrace generation can cause a crash, requiring a patch to prevent 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-2023-1173?

OSV-2023-1173 is a memory corruption vulnerability in ruby, published on 17 Nov 2023.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64218

Crash type: Heap-buffer-overflow READ 1
Crash state:
fill_lines
rb_dump_backtrace_with_lines
rb_vm_bugreport

Which versions are affected by OSV-2023-1173?

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

PackageAffectedFixed in
ruby OSS-FuzzAll versionsNone

How do I fix OSV-2023-1173?

No fix has been published for OSV-2023-1173 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-2023-1173 being exploited?

There is no known exploitation of OSV-2023-1173 in the wild and no public exploit code.

Sources

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