CVE-2018-14567 Denial of service in n/a

What is CVE-2018-14567?

CVE-2018-14567 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 16 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

libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251.

Weakness: CWE-835

Which versions are affected by CVE-2018-14567?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Xmlsoft Libxml2.

How do I fix CVE-2018-14567?

Apply the vendor's patch.

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-2018-14567 being exploited?

There is no known exploitation of CVE-2018-14567 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-2018-14567, DEBIAN-CVE-2018-14567, ECHO-1c11-aec9-49b8, GHSA-4h39-8h6h-93x3, UBUNTU-CVE-2018-14567.