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CVE-2017-3736

CVE-2017-3736

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Esta página muestra una selección de datos de las fuentes. Consulte los avisos enlazados para ver la descripción completa y las versiones afectadas.

There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.

CVSS 6.5 · Media · EPSS 10,1% · Corrección disponible

Publicación
Actualización

Pila tecnológica: system · network

Productos y versiones afectados

  • openssl

    Versiones
    • 1.1.0 - 1.1.0f: Afectada
    • 1.0.2 - 1.0.2l: Afectada

    Sin corrección publicada

  • openssl Debian:12

    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.1.0g-1

    Actualiza a 1.1.0g-1

  • openssl Debian:13

    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.1.0g-1

    Actualiza a 1.1.0g-1

  • openssl Debian:14

    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.1.0g-1

    Actualiza a 1.1.0g-1

  • openssl Ubuntu:16.04:LTS

    Versiones
    • 1.0.2d-0ubuntu1
    • 1.0.2d-0ubuntu2
    • 1.0.2e-1ubuntu1
    • 1.0.2f-2ubuntu1
    • 1.0.2g-1ubuntu2
    • 1.0.2g-1ubuntu3
    • 1.0.2g-1ubuntu4
    • 1.0.2g-1ubuntu4.1
    • 1.0.2g-1ubuntu4.2
    • 1.0.2g-1ubuntu4.4
    • 1.0.2g-1ubuntu4.5
    • 1.0.2g-1ubuntu4.6
    • 1.0.2g-1ubuntu4.8
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.0.2g-1ubuntu4.9

    Actualiza a 1.0.2g-1ubuntu4.9

  • openssl Ubuntu:18.04:LTS

    Versiones
    • 1.0.2g-1ubuntu13
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.0.2g-1ubuntu14

    Actualiza a 1.0.2g-1ubuntu14

Fuentes originales

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