Vulnerability Description
Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 81.0 |
| Mozilla | Firefox Esr | < 78.3 |
| Mozilla | Thunderbird | < 78.3 |
| Debian | Debian Linux | 9.0 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlMailing ListThird Party Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1648493%2C1660800Broken LinkIssue TrackingVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202010-02Third Party Advisory
- https://www.debian.org/security/2020/dsa-4770Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-42/Release NotesVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-43/Release NotesVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-44/Release NotesVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlMailing ListThird Party Advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1648493%2C1660800Broken LinkIssue TrackingVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202010-02Third Party Advisory
- https://www.debian.org/security/2020/dsa-4770Third Party Advisory
FAQ
What is CVE-2020-15673?
CVE-2020-15673 is a vulnerability with a CVSS score of 8.8 (HIGH). Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these ...
How severe is CVE-2020-15673?
CVE-2020-15673 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15673?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Debian Debian Linux, Opensuse Leap.