CVE-2018-11545 Memory corruption in n/a

Critical 9.8 Published 29 May 2018 Updated 16 Sep 2024

A heap-based buffer overflow in the md4c library allows attackers to execute arbitrary code or cause denial of service via crafted markdown input.

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-2018-11545?

CVE-2018-11545 is a critical memory corruption vulnerability in n/a, published on 29 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

md4c 0.2.5 has a heap-based buffer overflow in md_merge_lines because md_is_link_label mishandles the case of a link label composed solely of backslash escapes.

Weakness: CWE-787

Which versions are affected by CVE-2018-11545?

It affects 1 product.

Products include Md4c Project Md4c.

How do I fix CVE-2018-11545?

No fix has been published for CVE-2018-11545 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-2018-11545 being exploited?

There is no known exploitation of CVE-2018-11545 in the wild and no public exploit code.

Sources

Also known as GHSA-78q4-2c8r-5ghp.