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CVE-2017-7763

N/A
Published: June 11, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:25 AM UTC
4 products affected across 2 vendorsDebian LinuxFirefoxThunderbird· also runs on 1 platform

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Severity
N/A
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
8.09.0
Firefox· Mozilla
95%
v < 52.2.0v < 54v < 54.0
Affected range stops below 54, so it looks safe — our inference, not a vendor statement
Affected range stops below 54.0, so it looks safe — our inference, not a vendor statement
apple-macos (environment)
Thunderbird· Mozilla
95%
v < 52.2v < 52.2.0
Affected range stops below 52.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 52.2.0, so it looks safe — our inference, not a vendor statement
apple-macos (environment)
Firefox ESR· Mozilla
60%
v < 52.2
Affected range stops below 52.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 52.2.0, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (6)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/99057
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1038689
x_refsource_CONFIRMIssue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1360309
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2017-15/
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2017-16/
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.mozilla.org/security/advisories/mfsa2017-17/

CVSS

5MEDIUM[email protected]
Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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