Out-of-bounds Read

Affecting libssh2 package, versions <1.7.0-1+deb9u1

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Overview

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

References

CVSS Score

9.1
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    None
  • Availability
    High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVE
CVE-2019-3862
CWE
CWE-125 CWE-130
Snyk ID
SNYK-DEBIAN9-LIBSSH2-340759
Disclosed
21 Mar, 2019
Published
17 Mar, 2019