Improper Input Validation

Affecting openssh package, versions <1:6.7p1-5+deb8u6

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Overview

The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F
CVE
CVE-2016-6515
CWE
CWE-20
Snyk ID
SNYK-DEBIAN8-OPENSSH-368697
Disclosed
07 Aug, 2016
Published
07 Aug, 2016