Vulnerability Description
During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 72.0 |
| Mozilla | Firefox Esr | < 68.4 |
| Microsoft | Windows | - |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-ExploitThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1599008ExploitIssue TrackingPermissions Required
- https://seclists.org/bugtraq/2020/Jan/18Mailing ListThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-02/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-ExploitThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1599008ExploitIssue TrackingPermissions Required
- https://seclists.org/bugtraq/2020/Jan/18Mailing ListThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-02/Vendor Advisory
FAQ
What is CVE-2019-17021?
CVE-2019-17021 is a vulnerability with a CVSS score of 5.3 (MEDIUM). During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Window...
How severe is CVE-2019-17021?
CVE-2019-17021 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-17021?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Microsoft Windows, Opensuse Leap.