Medium severity · published Aug 10, 2020
CVE-2020-15652
By observing the stack trace for JavaScript errors in web workers, it was possible to leak the result of a cross-origin redirect
6.5
CVSS
1.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 79.0; 78.0 before 78.1 · source: NVD
FE
Firefox Esr · Mozilla
before 68.11 · source: NVD
TH
Thunderbird · Mozilla
before 68.11; 78.0 before 78.1 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15652
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15652
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html
Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1634872
Third Party Advisory
https://usn.ubuntu.com/4443-1/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-30/
More from Firefox
10.0
CVE-2019-11708
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
9.8
CVE-2024-9680
Mozilla Firefox Use-After-Free Vulnerability
9.8
CVE-2010-3765
Mozilla Multiple Products Remote Code Execution Vulnerability
9.6
CVE-2022-26486
Mozilla Firefox Use-After-Free Vulnerability
8.8
CVE-2023-5217
Google Chromium libvpx Heap Buffer Overflow Vulnerability