CVE-2019-11738

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

If a Content Security Policy (CSP) directive is defined that uses a hash-based source that takes the empty string as input, execution of any javascript: URIs will be allowed. This could allow for malicious JavaScript content to be run, bypassing CSP permissions. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1452037

https://www.mozilla.org/security/advisories/mfsa2019-25/

https://www.mozilla.org/security/advisories/mfsa2019-26/

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

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

Details

Source: MITRE

Published: 2019-09-27

Updated: 2021-07-21

Type: CWE-276

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Impact Score: 3.4

Exploitability Score: 2.8

Severity: MEDIUM

Tenable Plugins

View all (13 total)

IDNameProductFamilySeverity
145625CentOS 8 : firefox (CESA-2019:2663)NessusCentOS Local Security Checks
high
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
129583SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2019:2545-1)NessusSuSE Local Security Checks
high
128599Oracle Linux 8 : firefox (ELSA-2019-2663)NessusOracle Linux Local Security Checks
high
128528Mozilla Firefox ESR < 68.1NessusWindows
high
128527Mozilla Firefox ESR < 68.1NessusMacOS X Local Security Checks
high
128525Mozilla Firefox < 69.0NessusWindows
high
128524Mozilla Firefox < 69.0NessusMacOS X Local Security Checks
high
128521Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : firefox vulnerabilities (USN-4122-1)NessusUbuntu Local Security Checks
high
128517RHEL 8 : firefox (RHSA-2019:2663)NessusRed Hat Local Security Checks
high
128491FreeBSD : mozilla -- multiple vulnerabilities (05463e0a-abd3-4fa4-bd5f-cd5ed132d4c6)NessusFreeBSD Local Security Checks
high