CVE-2019-14249 Denial of service in n/a

Medium 6.5 Published 24 Jul 2019 Updated 5 Aug 2024

Attackers can cause a denial of service via a crafted ELF file with a zero-size section group, affecting applications using libdwarf.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2019-14249?

CVE-2019-14249 is a medium-severity denial of service vulnerability in n/a, published on 24 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

dwarf_elf_load_headers.c in libdwarf before 2019-07-05 allows attackers to cause a denial of service (division by zero) via an ELF file with a zero-size section group (SHT_GROUP), as demonstrated by dwarfdump.

Weakness: CWE-369

Which versions are affected by CVE-2019-14249?

It affects 1 product.

Products include Libdwarf Project Libdwarf.

How do I fix CVE-2019-14249?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-14249 being exploited?

There is no known exploitation of CVE-2019-14249 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2019-14249, AZL-33329, AZL-42081, GHSA-vwmg-hgqp-857p, MGASA-2020-0017.