CVEvulnerability
CVE-2019-9813
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-04-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 8.8 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-843
Description
Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.
Affected configurations
• mozilla firefox (< 60.6.1)
• mozilla firefox (< 66.0.1)
• mozilla thunderbird (< 60.6.1)
Related
Weakness · CWE (1)
- CWE-843 Access of Resource Using Incompatible Type weakness
References
- https://access.redhat.com/errata/RHSA-2019:0966 access.redhat.com
- https://access.redhat.com/errata/RHSA-2019:1144 access.redhat.com
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538006 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-09/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-12/ Vendor Advisory
- https://access.redhat.com/errata/RHSA-2019:0966 access.redhat.com
- https://access.redhat.com/errata/RHSA-2019:1144 access.redhat.com
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538006 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-09/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-12/ Vendor Advisory