CVE-2018-15120 Denial of service in n/a

Medium 6.5 Published Updated

Remote attackers can crash applications using the Pango library by sending crafted text with invalid Unicode sequences.

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-2018-15120?

CVE-2018-15120 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 24 Aug 2018. 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

libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted text with invalid Unicode sequences.

Weakness: CWE-119

Which versions are affected by CVE-2018-15120?

It affects 2 products.

Linux distribution packages (3)
pango SUSE:Linux Enterprise Module for Basesystem 15All versions1.40.14-3.3.1
pango SUSE:Linux Enterprise Module for Desktop Applications 15All versions1.40.14-3.3.1
hexchat openSUSE:TumbleweedAll versions2.14.3-4.4

Products include Canonical Ubuntu Linux, Gnome Pango.

How do I fix CVE-2018-15120?

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-2018-15120 being exploited?

There is no known exploitation of CVE-2018-15120 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2018-15120, DEBIAN-CVE-2018-15120, GHSA-6gmw-hfp8-7f52, SUSE-SU-2018:2763-1, UBUNTU-CVE-2018-15120, USN-3750-1 and 2 more.

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