CVE-2020-15652 Information disclosure in Firefox
Attackers can leak cross-origin redirect results by observing JavaScript stack traces in web workers, affecting Firefox and Thunderbird users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-15652?
CVE-2020-15652 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
By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a cross-origin redirect. This applied only to content that can be parsed as script. This vulnerability affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1.
Weakness: CWE-346
Which versions are affected by CVE-2020-15652?
It affects 4 products.
Products include Canonical Ubuntu Linux, Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2020-15652?
Upgrade to a fixed version.
Is CVE-2020-15652 being exploited?
There is no known exploitation of CVE-2020-15652 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2020-15652, GHSA-2wfj-m7vx-f7mf, UBUNTU-CVE-2020-15652.