CVE-2017-5378 Information disclosure in Firefox
Attackers can leak memory addresses and object content via shared JavaScript hash codes, enabling potential exploitation in Firefox and Thunderbird.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-5378?
CVE-2017-5378 is a high-severity vulnerability in Debian Debian Linux, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Hashed codes of JavaScript objects are shared between pages. This allows for pointer leaks because an object's address can be discovered through hash codes, and also allows for data leakage of an object's content using these hash codes. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
Weakness: CWE-200
Which versions are affected by CVE-2017-5378?
It affects 9 products.
Products include Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 3 more.
How do I fix CVE-2017-5378?
Upgrade to a fixed version.
Is CVE-2017-5378 being exploited?
There is no known exploitation of CVE-2017-5378 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-5378, GHSA-hx32-3942-m67q, UBUNTU-CVE-2017-5378.