CVE-2018-20185 Memory corruption in n/a

What is CVE-2018-20185?

CVE-2018-20185 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 17 Dec 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

In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.

Weakness: CWE-125

Which versions are affected by CVE-2018-20185?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Graphicsmagick Graphicsmagick.

How do I fix CVE-2018-20185?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-20185 being exploited?

There is no known exploitation of CVE-2018-20185 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 DEBIAN-CVE-2018-20185, GHSA-569g-rm32-h5jr, UBUNTU-CVE-2018-20185.