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CVE-2019-3857

CVE-2019-3857

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 6.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libssh2

    Versions
    • 1.8.1: Affected

    No fix published

  • libssh2 Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.8.0-2.1

    Update to 1.8.0-2.1

  • libssh2 Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.8.0-2.1

    Update to 1.8.0-2.1

  • libssh2 Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.8.0-2.1

    Update to 1.8.0-2.1

  • libssh2 Ubuntu:Pro:14.04:LTS

    Versions
    • 1.4.3-1
    • 1.4.3-2
    • 1.4.3-2ubuntu0.1
    • 1.4.3-2ubuntu0.2
    • 1.4.3-2ubuntu0.2+esm1
    Affected ranges
    • ECOSYSTEM: < 1.4.3-2ubuntu0.2+esm2

    Update to 1.4.3-2ubuntu0.2+esm2

  • libssh2 Ubuntu:Pro:16.04:LTS

    Versions
    • 1.5.0-2
    • 1.5.0-2ubuntu0.1
    Affected ranges
    • ECOSYSTEM: < 1.5.0-2ubuntu0.1+esm1

    Update to 1.5.0-2ubuntu0.1+esm1

  • libssh2 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.8.0-1
    • 1.8.0-1ubuntu0.1
    • 1.8.0-1ubuntu0.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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