CVE-2018-6942 Null dereference in n/a

What is CVE-2018-6942?

CVE-2018-6942 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 13 Feb 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

An issue was discovered in FreeType 2 through 2.9. A NULL pointer dereference in the Ins_GETVARIATION() function within ttinterp.c could lead to DoS via a crafted font file.

Weakness: CWE-476

Which versions are affected by CVE-2018-6942?

It affects 2 products.

Products include Canonical Ubuntu Linux, Freetype Freetype.

How do I fix CVE-2018-6942?

Apply the vendor's patch.

Is CVE-2018-6942 being exploited?

There is no known exploitation of CVE-2018-6942 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2018-6942, DEBIAN-CVE-2018-6942, GHSA-pjfg-6mwr-j367, MGASA-2018-0140, SUSE-SU-2020:1353-1, openSUSE-SU-2020:0704-1.