CVE-2017-7763

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

Default fonts on OS X display some Tibetan characters as whitespace. When used in the addressbar as part of an IDN this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

References

http://www.securityfocus.com/bid/99057

http://www.securitytracker.com/id/1038689

https://bugzilla.mozilla.org/show_bug.cgi?id=1360309

https://www.mozilla.org/security/advisories/mfsa2017-15/

https://www.mozilla.org/security/advisories/mfsa2017-16/

https://www.mozilla.org/security/advisories/mfsa2017-17/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2018-08-14

Type: CWE-20

Risk Information

CVSS v2

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 5.3

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

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM

Tenable Plugins

View all (7 total)

IDNameProductFamilySeverity
102694SUSE SLES11 Security Update : MozillaFirefox, MozillaFirefox-branding-SLED, firefox-gcc5, mozilla-nss (SUSE-SU-2017:2235-1)NessusSuSE Local Security Checks
critical
101771Mozilla Thunderbird < 52.2 Multiple Vulnerabilities (macOS)NessusMacOS X Local Security Checks
critical
101055SUSE SLED12 / SLES12 Security Update : MozillaFirefox, MozillaFirefox-branding-SLE (SUSE-SU-2017:1669-1)NessusSuSE Local Security Checks
critical
100808Mozilla Firefox < 54 Multiple Vulnerabilities (macOS)NessusMacOS X Local Security Checks
critical
100807Mozilla Firefox ESR < 52.2 Multiple Vulnerabilities (macOS)NessusMacOS X Local Security Checks
critical
700134Mozilla Firefox < 54 Multiple VulnerabilitiesNessus Network MonitorWeb Clients
high
100775FreeBSD : mozilla -- multiple vulnerabilities (6cec1b0a-da15-467d-8691-1dea392d4c8d)NessusFreeBSD Local Security Checks
critical