CVE-2016-4574 Integer overflow in n/a

What is CVE-2016-4574?

CVE-2016-4574 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 13 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.

Weakness: CWE-189

Which versions are affected by CVE-2016-4574?

It affects 4 products.

Products include Canonical Ubuntu Linux, Gnupg Libksba, Opensuse Leap, Opensuse Opensuse.

How do I fix CVE-2016-4574?

Upgrade to a fixed version.

Is CVE-2016-4574 being exploited?

There is no known exploitation of CVE-2016-4574 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-2016-4574, GHSA-986h-5j8j-hgfc, UBUNTU-CVE-2016-4574.