CVE-2017-16541
Firefox proxy settings can be bypassed by using the automount feature with autofs to create a mount point on the local file system. Content can be loaded from this mounted file system directly using a `file:` URI, bypassing configured proxy settings. This issue only affects OS X in default configuration; on Linux systems, autofs must also be installed for the vulnerability to occur.
Find out more about CVE-2017-16541 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This flaw cannot be exploited through email in Thunderbird as scripting is disabled in this for email content. It may be possible to exploit through Feeds (Atom or RSS) or other browser-like contexts.
CVSS v3 metrics
| 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 |
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 6 (firefox) | RHSA-2018:2693 | 2018-09-12 |
| Red Hat Enterprise Linux 7 (firefox) | RHSA-2018:2692 | 2018-09-12 |
| Red Hat Enterprise Linux 7 (thunderbird) | RHSA-2018:3458 | 2018-11-05 |
| Red Hat Enterprise Linux 6 (thunderbird) | RHSA-2018:3403 | 2018-10-30 |