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CVE-2018-0739

CVE-2018-0739 · Constructed ASN.1 types with a recursive definition could exceed the stack

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

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).

CVSS 6.5 · Medium · EPSS 18.6% · Fix available

Published
Updated

Stack: system · network

Affected products and versions

  • openssl

    Versions
    • Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g): Affected
    • Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n): Affected

    No fix published

  • libtomcrypt Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.18.2-1

    Update to 1.18.2-1

  • libtomcrypt Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.18.2-1

    Update to 1.18.2-1

  • libtomcrypt Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.18.2-1

    Update to 1.18.2-1

  • openssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.1.0h-1

    Update to 1.1.0h-1

  • openssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.1.0h-1

    Update to 1.1.0h-1

  • openssl Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.1.0h-1

    Update to 1.1.0h-1

  • openssl Ubuntu:14.04:LTS

    Versions
    • 1.0.1e-3ubuntu1
    • 1.0.1e-4ubuntu1
    • 1.0.1e-4ubuntu2
    • 1.0.1e-4ubuntu3
    • 1.0.1e-4ubuntu4
    • 1.0.1f-1ubuntu1
    • 1.0.1f-1ubuntu2
    • 1.0.1f-1ubuntu2.1
    • 1.0.1f-1ubuntu2.2
    • 1.0.1f-1ubuntu2.3
    • 1.0.1f-1ubuntu2.4
    • 1.0.1f-1ubuntu2.5
    • 1.0.1f-1ubuntu2.7
    • 1.0.1f-1ubuntu2.8
    • 1.0.1f-1ubuntu2.11
    • 1.0.1f-1ubuntu2.12
    • 1.0.1f-1ubuntu2.15
    • 1.0.1f-1ubuntu2.16
    • 1.0.1f-1ubuntu2.17
    • 1.0.1f-1ubuntu2.18
    • 1.0.1f-1ubuntu2.19
    • 1.0.1f-1ubuntu2.20
    • 1.0.1f-1ubuntu2.21
    • 1.0.1f-1ubuntu2.22
    • 1.0.1f-1ubuntu2.23
    Affected ranges
    • ECOSYSTEM: < 1.0.1f-1ubuntu2.24

    Update to 1.0.1f-1ubuntu2.24

  • openssl Ubuntu:16.04:LTS

    Versions
    • 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
    • 1.0.2g-1ubuntu4.9
    • 1.0.2g-1ubuntu4.10
    Affected ranges
    • ECOSYSTEM: < 1.0.2g-1ubuntu4.11

    Update to 1.0.2g-1ubuntu4.11

  • openssl Ubuntu:18.04:LTS

    Versions
    • 1.0.2g-1ubuntu13
    • 1.0.2g-1ubuntu14
    • 1.0.2n-1ubuntu1
    • 1.1.0g-2ubuntu1
    • 1.1.0g-2ubuntu2
    Affected ranges
    • ECOSYSTEM: < 1.1.0g-2ubuntu3

    Update to 1.1.0g-2ubuntu3

  • openssl1.0 Ubuntu:18.04:LTS

    Versions
    • 1.0.2n-1ubuntu2
    • 1.0.2n-1ubuntu3
    • 1.0.2n-1ubuntu4
    Affected ranges
    • ECOSYSTEM: < 1.0.2n-1ubuntu5

    Update to 1.0.2n-1ubuntu5

Original sources

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