vulnwire
5.3med

CVE-2017-7763

Default fonts on OS X display some Tibetan characters as whitespace.

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.1%
percentile 66%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

1.11% probability of exploitation in the next 30 days, higher than 66% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Mozilla Firefox
  • Mozilla Firefox ESR
  • Mozilla Thunderbird

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • securityfocus.com /bid/99057 · vdb-entry, x_refsource_BID, x_transferred
  • mozilla.org /security/advisories/mfsa2017-15/ · x_refsource_CONFIRM, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1360309 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1038689 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • mozilla.org /security/advisories/mfsa2017-17/ · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2017-16/ · x_refsource_CONFIRM, x_transferred

Sources

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