Findings

CVE-2019-3855

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server.

Published Mar 21, 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 packets are read from the server. 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 21, 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 packets are read from the server. 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 packets are read from the server. 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 apple/xcodeversion unspecified
  • cpe debian/debian linux8.0
  • cpe debian/debian linux9.0
  • cpe fedoraproject/fedora28
  • cpe fedoraproject/fedora29
  • cpe fedoraproject/fedora30
  • cpe libssh2/libssh2version unspecified
  • cpe netapp/ontap select deploy administration utilityversion unspecified
  • cpe opensuse/leap42.3
  • cpe oracle/peoplesoft enterprise peopletools8.56
  • cpe redhat/enterprise linux8.0

Sources

  • NIST NVDCVE-2019-3855

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

    nvd.nist.gov

References