Out-of-bounds Read

Affecting exim4 package, versions <4.89-2+deb9u7

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Overview

Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c.

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    None
  • Availability
    None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE
CVE-2020-12783
CWE
CWE-125
Snyk ID
SNYK-DEBIAN9-EXIM4-568862
Disclosed
11 May, 2020
Published
11 May, 2020