Description
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Metrics
CVSS 3.1 8.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox ESR | >= unspecified, < 68.10 |
| Mozilla | Firefox | >= unspecified, < 78 |
| Mozilla | Thunderbird | >= unspecified, < 68.10.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1643874Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202007-09Third Party Advisory
- https://security.gentoo.org/glsa/202007-10Third Party Advisory
- https://usn.ubuntu.com/4421-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-25/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-26/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing List, Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1643874Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202007-09Third Party Advisory
- https://security.gentoo.org/glsa/202007-10Third Party Advisory
- https://usn.ubuntu.com/4421-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-25/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-26/Vendor Advisory
Timeline
- Published
- Jul 9, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified