The Pocket toolbar button, once activated, listens for events fired from it's own pages but does not verify the origin of incoming events. This allows content from other origins to fire events and inject content and commands into the Pocket context. Note: this issue does not affect users with e10s enabled. This vulnerability affects Firefox ESR < 45.6 and Firefox < 50.1.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-9902 from the MITRE CVE dictionary dictionary and NIST NVD.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
| CVSS3 Base Score | 5.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | None |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2016:2946 | 2016-12-14 |
| Red Hat Enterprise Linux 5 (thunderbird) | RHSA-2016:2973 | 2016-12-21 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2016:2973 | 2016-12-21 |
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2016:2946 | 2016-12-14 |
| Red Hat Enterprise Linux 5 (firefox) | RHSA-2016:2946 | 2016-12-14 |
| Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) (thunderbird) | RHSA-2016:2973 | 2016-12-21 |
| Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2016:2973 | 2016-12-21 |
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