CVE-2020-15652

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.70% Top 30%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-30/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2020-35/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2020-32/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2020-33/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2020-31/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1634872 issue tracking vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html vendor advisory broken link
https://usn.ubuntu.com/4443-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15652?
CVE-2020-15652 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15652?
To fix CVE-2020-15652, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15652 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15652 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15652?
CVE-2020-15652 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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