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Findings

CVE-2019-3857

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit sign…

Published Mar 25, 2019 · updated Oct 14, 2026 · libssh2 libssh2

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 25, 2019 · NIST NVD

    Detected

    An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

  2. Oct 14, 2026 · NIST NVD

    Updated

    An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

Affected

  • cpe debian/debian linux8.0
  • cpe debian/debian linux9.0
  • cpe fedoraproject/fedora28
  • cpe libssh2/libssh2version unspecified
  • cpe netapp/ontap select deploy administration utilityversion unspecified
  • cpe opensuse/leap15.0
  • cpe opensuse/leap42.3
  • cpe oracle/peoplesoft enterprise peopletools8.56
  • cpe redhat/enterprise linux8.0
  • cpe redhat/enterprise linux desktop7.0

Sources

  • CVE.orgCVE-2019-3857

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2019-3857

    An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system wh

    nvd.nist.gov

References