CVE-2018-5712 Cross-site scripting in n/a

What is CVE-2018-5712?

CVE-2018-5712 is a medium-severity cross-site scripting vulnerability in Canonical Ubuntu Linux, published on 16 Jan 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 PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1. There is Reflected XSS on the PHAR 404 error page via the URI of a request for a .phar file.

Weakness: CWE-79

Which versions are affected by CVE-2018-5712?

It affects 3 products.

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

How do I fix CVE-2018-5712?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-5712 being exploited?

There is no known exploitation of CVE-2018-5712 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-2018-5712, DLA-1251-1, GHSA-p569-737x-7h7p, UBUNTU-CVE-2018-5712.