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CVE-2020-1730

CVE-2020-1730

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

A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability.

CVSS 5.3 · Medium · EPSS 3.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libssh

    Versions
    • libssh versions before 0.8.9: Affected
    • libssh versions before 0.9.4: Affected

    No fix published

  • libssh Debian:12

    Affected ranges
    • ECOSYSTEM: < 0.9.4-1

    Update to 0.9.4-1

  • libssh Debian:13

    Affected ranges
    • ECOSYSTEM: < 0.9.4-1

    Update to 0.9.4-1

  • libssh Debian:14

    Affected ranges
    • ECOSYSTEM: < 0.9.4-1

    Update to 0.9.4-1

  • libssh Ubuntu:18.04:LTS

    Versions
    • 0.7.5-1
    • 0.8.0~20170825.94fa1e38-1
    • 0.8.0~20170825.94fa1e38-1build1
    • 0.8.0~20170825.94fa1e38-1ubuntu0.1
    • 0.8.0~20170825.94fa1e38-1ubuntu0.2
    • 0.8.0~20170825.94fa1e38-1ubuntu0.5
    Affected ranges
    • ECOSYSTEM: < 0.8.0~20170825.94fa1e38-1ubuntu0.6

    Update to 0.8.0~20170825.94fa1e38-1ubuntu0.6

Original sources

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