CVE-2019-11728

Medium

Description

The HTTP Alternative Services header, Alt-Svc, can be used by a malicious site to scan all TCP ports of any host that the accessible to a user when web content is loaded. This vulnerability affects Firefox < 68.

SeverityMedium

CVSS4.7

Exploit probability—

Product

Mozilla Firefox

PublishedJul 23, 2019

First seenJul 23, 2019

How to fix

Update

mozilla firefox68.0 or later

Vendor advisories

security.gentoo.org/glsa/201908-12

Affected products

Product	Affected versions	Fixed in
mozilla firefox	v < 68.0	68.0
opensuse leap	15.0, 15.1	—

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