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CVE-2016-4745

nvd nist
Published: Sep 25, 2016Modified: May 6, 2026

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5.3
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD

Description

The Kerberos 5 (aka krb5) PAM module in Apple OS X before 10.12 does not use constant-time operations for determining username validity, which makes it easier for remote attackers to enumerate user accounts via a timing side-channel attack.

Affected (1)

Products: Apple: Mac Os X
Apple
1 product
Mac Os X
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Mac Os X
Up to 10.11.6

Related CWEs

CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (8)

Source: product-security@apple.com
Mailing ListVendor Advisory
Source: product-security@apple.com
Source: product-security@apple.com
Source: product-security@apple.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.