OSV-2023-311 Heap-double-free in cache_bclose

Not scored Published

A heap double-free vulnerability in binutils objdump allows attackers to cause denial of service or potentially execute code via crafted files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is OSV-2023-311?

OSV-2023-311 is an use after free vulnerability in binutils, published on 14 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=57939

Crash type: Heap-double-free
Crash state:
cache_bclose
bfd_close_all_done
fuzz_objdump.h

Which versions are affected by OSV-2023-311?

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

PackageAffectedFixed in
binutils OSS-FuzzAll versionsNone

How do I fix OSV-2023-311?

No fix has been published for OSV-2023-311 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is OSV-2023-311 being exploited?

There is no known exploitation of OSV-2023-311 in the wild and no public exploit code.

Sources

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