CVE-2020-15653 Security feature bypass in Firefox

What is CVE-2020-15653?

CVE-2020-15653 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 10 Aug 2020. 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 iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Which versions are affected by CVE-2020-15653?

It affects 4 products.

Products include Canonical Ubuntu Linux, Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.

How do I fix CVE-2020-15653?

Upgrade to a fixed version.

Is CVE-2020-15653 being exploited?

There is no known exploitation of CVE-2020-15653 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 GHSA-vcgf-4q4f-3267, UBUNTU-CVE-2020-15653.