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CVE-2023-0217

CVE-2023-0217 · NULL dereference validating DSA public key

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

An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function. This will most likely lead to an application crash. This function can be called on public keys supplied from untrusted sources which could allow an attacker to cause a denial of service attack. The TLS implementation in OpenSSL does not call this function but applications might call the function if there are additional security requirements imposed by standards such as FIPS 140-3.

CVSS 7.5 · High · EPSS 1.8% · Fix available

Published
Updated

Stack: system · network

Affected products and versions

  • openssl

    Versions
    • ≥ 3.0.0, < 3.0.8: Affected (semver)

    Update to 3.0.8

  • openssl Debian:12

    Affected ranges
    • ECOSYSTEM: < 3.0.8-1

    Update to 3.0.8-1

  • openssl Debian:13

    Affected ranges
    • ECOSYSTEM: < 3.0.8-1

    Update to 3.0.8-1

  • openssl Debian:14

    Affected ranges
    • ECOSYSTEM: < 3.0.8-1

    Update to 3.0.8-1

  • openssl Ubuntu:22.04:LTS

    Versions
    • 1.1.1l-1ubuntu1
    • 3.0.0-1ubuntu1
    • 3.0.1-0ubuntu1
    • 3.0.2-0ubuntu1
    • 3.0.2-0ubuntu1.1
    • 3.0.2-0ubuntu1.2
    • 3.0.2-0ubuntu1.4
    • 3.0.2-0ubuntu1.5
    • 3.0.2-0ubuntu1.6
    • 3.0.2-0ubuntu1.7
    Affected ranges
    • ECOSYSTEM: < 3.0.2-0ubuntu1.8

    Update to 3.0.2-0ubuntu1.8

Original sources

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