CVE-2020-27545 Null dereference in n/a

Medium 6.5 Published Updated

An attacker can cause a denial of service via a crafted object triggering an out-of-bounds read in the libdwarf library.

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-2020-27545?

CVE-2020-27545 is a medium-severity vulnerability in n/a, published on 15 Apr 2023. 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

libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.

Weakness: CWE-763

Which versions are affected by CVE-2020-27545?

It affects 1 product.

Linux distribution packages (4)
libdwarf SUSE:Linux Enterprise Module for Package Hub 15 SP4All versions20161124-150000.3.6.1
libdwarf SUSE:Linux Enterprise Module for Package Hub 15 SP5All versions20161124-150000.3.6.1
libdwarf openSUSE:Leap 15.4All versions20161124-150000.3.6.1
libdwarf openSUSE:Leap 15.5All versions20161124-150000.3.6.1

Products include Libdwarf Project Libdwarf.

How do I fix CVE-2020-27545?

Upgrade to a fixed version.

Is CVE-2020-27545 being exploited?

There is no known exploitation of CVE-2020-27545 in the wild and no public exploit code.

Sources

Also known as AZL-33327, AZL-42093, DEBIAN-CVE-2020-27545, GHSA-9mh7-9qxg-6fpq, SUSE-SU-2023:2784-1, UBUNTU-CVE-2020-27545.

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