Out-of-Bounds

Affecting exim4 package, versions <4.89-2+deb9u3

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Overview

An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.

References

CVSS Score

9.8
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F
CVE
CVE-2018-6789
CWE
CWE-119
Snyk ID
SNYK-DEBIAN9-EXIM4-382871
Disclosed
08 Feb, 2018
Published
08 Feb, 2018