CVE-2016-6855 Memory corruption in n/a

What is CVE-2016-6855?

CVE-2016-6855 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 7 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Eye of GNOME (aka eog) 3.16.5, 3.17.x, 3.18.x before 3.18.3, 3.19.x, and 3.20.x before 3.20.4, when used with glib before 2.44.1, allow remote attackers to cause a denial of service (out-of-bounds write and crash) via vectors involving passing invalid UTF-8 to GMarkup.

Weakness: CWE-787

Which versions are affected by CVE-2016-6855?

It affects 5 products.

Products include Canonical Ubuntu Linux, Fedoraproject Fedora, Gnome Eye of Gnome, Opensuse Leap, Opensuse Opensuse.

How do I fix CVE-2016-6855?

Upgrade to a fixed version.

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

Is CVE-2016-6855 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-6855 exists.

Public exploit code: 1 Exploit-DB entry.

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-2016-6855, DLA-2185-1, DLA-605-1, GHSA-7jwp-58q4-9rxh, MGASA-2016-0297, SUSE-SU-2016:2827-1 and 2 more.