CVE-2017-7797 Information disclosure in Firefox

What is CVE-2017-7797?

CVE-2017-7797 is a high-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Response header name interning does not have same-origin protections and these headers are stored in a global registry. This allows stored header names to be available cross-origin. This vulnerability affects Firefox < 55.

Weakness: CWE-346

Which versions are affected by CVE-2017-7797?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2017-7797?

Upgrade to a fixed version.

Is CVE-2017-7797 being exploited?

There is no known exploitation of CVE-2017-7797 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5xc2-gx42-84wf, UBUNTU-CVE-2017-7797.