CVE-2018-18506
thunderbird - security update
5.9
MEDIUM
CVSS 3.1
EPSS 1.1%
Description
When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a PAC file is loaded locally, this PAC file can specify that requests to the localhost are to be sent through the proxy to another server. This behavior is disallowed by default when a proxy is manually configured, but when enabled could allow for attacks on services and tools that bind to the localhost for networked behavior if they are accessed through browsing. This vulnerability affects Firefox < 65.
How to fix CVE-2018-18506
To remediate CVE-2018-18506, upgrade the affected package to a fixed version below.
- —upgrade to 60.6.0esr-1 or later
- —upgrade to 60.6.0esr-1~deb8u1 or later
- —upgrade to 60.6.0esr-1~deb9u1 or later
- —upgrade to 1:60.6.1-1 or later
- —upgrade to 1:60.6.1-1~deb8u1 or later
- —upgrade to 1:60.6.1-1~deb9u1 or later
Is CVE-2018-18506 being exploited?
Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 60.6.0esr-1
- from 0, < 60.6.0esr-1~deb8u1
- from 0, < 60.6.0esr-1~deb9u1
- from 0, < 1:60.6.1-1
- from 0, < 1:60.6.1-1~deb8u1
- from 0, < 1:60.6.1-1~deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |