CVE-2017-5384

Publication date 25 January 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

Description

Proxy Auto-Config (PAC) files can specify a JavaScript function called for all URL requests with the full URL path which exposes more information than would be sent to the proxy itself in the case of HTTPS. Normally the Proxy Auto-Config file is specified by the user or machine owner and presumed to be non-malicious, but if a user has enabled Web Proxy Auto Detect (WPAD) this file can be served remotely. This vulnerability affects Firefox < 51.

Status

Package Ubuntu Release Status
firefox 17.04 zesty
Fixed 52.0.1+build2-0ubuntu1
16.10 yakkety
Fixed 51.0.1+build2-0ubuntu0.16.10.1
16.04 LTS xenial
Fixed 51.0.1+build2-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 51.0.1+build2-0ubuntu0.14.04.1
12.04 LTS precise
Fixed 51.0.1+build2-0ubuntu0.12.04.1
thunderbird 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.9 · Medium

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-3175-1
    • Firefox vulnerabilities
    • 27 January 2017

Other references

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