CVE-2023-39743 Memory corruption in n/a

Medium 5.3 Published Updated

An access violation in the bz3_decode_block component of lrzip-next can cause a denial of service.

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

What is CVE-2023-39743?

CVE-2023-39743 is a medium-severity memory corruption vulnerability in n/a, published on 17 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

lrzip-next LZMA v23.01 was discovered to contain an access violation via the component /bz3_decode_block src/libbz3.c.

Weakness: CWE-284

Which versions are affected by CVE-2023-39743?

It affects 1 product.

Products include Pete4abw Lzma Software Development Kit.

How do I fix CVE-2023-39743?

No fix has been published for CVE-2023-39743 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 CVE-2023-39743 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39743 exists.

Sources

Also known as GHSA-mg73-j4vh-6r94, UBUNTU-CVE-2023-39743.

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