Vulnerability Details : CVE-2017-7763
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.
Vulnerability category: Input validation
Products affected by CVE-2017-7763
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7763
0.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7763
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2017-7763
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7763
-
https://www.mozilla.org/security/advisories/mfsa2017-17/
Security vulnerabilities fixed in Thunderbird 52.2 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1360309
1360309 - (CVE-2017-7763) Security issue: Domain spoofing thanks to U+0F8C rendered as space on MacIssue Tracking;Vendor Advisory
-
http://www.securityfocus.com/bid/99057
Mozilla Firefox Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
http://www.securitytracker.com/id/1038689
Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Obtain Potentially Sensitive Information, and Execute Arbitrary Code and Let Local Users Gain Elevated Privileges - SecurityTrackerThird Party Advisory;VDB Entry
-
https://www.mozilla.org/security/advisories/mfsa2017-15/
Security vulnerabilities fixed in Firefox 54 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2017-16/
Security vulnerabilities fixed in Firefox ESR 52.2 — MozillaVendor Advisory
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