CVE-2019-11728

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1552993

https://security.gentoo.org/glsa/201908-12

https://www.mozilla.org/security/advisories/mfsa2019-21/

Details

Source: MITRE

Published: 2019-07-23

Updated: 2020-08-24

Type: CWE-668

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 2.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
129772SUSE SLED12 / SLES12 Security Update : MozillaFirefox (SUSE-SU-2019:2620-1)NessusSuSE Local Security Checks
high
129665openSUSE Security Update : MozillaFirefox (openSUSE-2019-2260)NessusSuSE Local Security Checks
high
129664openSUSE Security Update : MozillaFirefox (openSUSE-2019-2251)NessusSuSE Local Security Checks
high
129663openSUSE Security Update : MozillaThunderbird (openSUSE-2019-2249)NessusSuSE Local Security Checks
high
129662openSUSE Security Update : MozillaThunderbird (openSUSE-2019-2248)NessusSuSE Local Security Checks
high
129583SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2019:2545-1)NessusSuSE Local Security Checks
high
128970Mozilla Thunderbird < 68.0NessusWindows
high
128969Mozilla Thunderbird < 68.0NessusMacOS X Local Security Checks
high
127961GLSA-201908-12 : Mozilla Firefox: Multiple vulnerabilitiesNessusGentoo Local Security Checks
critical
127093Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : Firefox regressions (USN-4054-2)NessusUbuntu Local Security Checks
high
126698Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : Firefox vulnerabilities (USN-4054-1)NessusUbuntu Local Security Checks
high
126622Mozilla Firefox < 68.0NessusWindows
high
126621Mozilla Firefox < 68.0NessusMacOS X Local Security Checks
high
126592FreeBSD : mozilla -- multiple vulnerabilities (0592f49f-b3b8-4260-b648-d1718762656c)NessusFreeBSD Local Security Checks
high