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CVE-2023-0361

CVE-2023-0361

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

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.

CVSS 7.4 · High · EPSS 1.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • gnutls

    Versions
    • gnutls-3.7.6: Affected

    No fix published

  • gnutls28 Debian:12

    Affected ranges
    • ECOSYSTEM: < 3.7.8-5

    Update to 3.7.8-5

  • gnutls28 Debian:13

    Affected ranges
    • ECOSYSTEM: < 3.7.8-5

    Update to 3.7.8-5

  • gnutls28 Debian:14

    Affected ranges
    • ECOSYSTEM: < 3.7.8-5

    Update to 3.7.8-5

  • gnutls28 Ubuntu:Pro:16.04:LTS

    Versions
    • 3.3.15-5ubuntu2
    • 3.3.18-1ubuntu1
    • 3.3.20-1ubuntu1
    • 3.4.9-2ubuntu1
    • 3.4.10-4ubuntu1
    • 3.4.10-4ubuntu1.1
    • 3.4.10-4ubuntu1.2
    • 3.4.10-4ubuntu1.3
    • 3.4.10-4ubuntu1.4
    • 3.4.10-4ubuntu1.5
    • 3.4.10-4ubuntu1.6
    • 3.4.10-4ubuntu1.7
    • 3.4.10-4ubuntu1.8
    • 3.4.10-4ubuntu1.9
    • 3.4.10-4ubuntu1.9+esm1
    • 3.4.10-4ubuntu1.9+esm2
    • 3.4.10-4ubuntu1.9+esm3
    • 3.4.10-4ubuntu1.9+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gnutls28 Ubuntu:Pro:18.04:LTS

    Versions
    • 3.5.8-6ubuntu3
    • 3.5.17-1ubuntu1
    • 3.5.17-1ubuntu3
    • 3.5.18-1ubuntu1
    • 3.5.18-1ubuntu1.1
    • 3.5.18-1ubuntu1.2
    • 3.5.18-1ubuntu1.3
    • 3.5.18-1ubuntu1.4
    • 3.5.18-1ubuntu1.5
    • 3.5.18-1ubuntu1.6
    • 3.5.18-1ubuntu1.6+esm1
    • 3.5.18-1ubuntu1.6+esm2
    • 3.5.18-1ubuntu1.6+esm3
    • 3.5.18-1ubuntu1.6+esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gnutls28 Ubuntu:20.04:LTS

    Versions
    • 3.6.9-5ubuntu1
    • 3.6.9-5ubuntu2
    • 3.6.10-5
    • 3.6.11.1-2
    • 3.6.11.1-2ubuntu2
    • 3.6.13-2ubuntu1
    • 3.6.13-2ubuntu1.1
    • 3.6.13-2ubuntu1.2
    • 3.6.13-2ubuntu1.3
    • 3.6.13-2ubuntu1.6
    • 3.6.13-2ubuntu1.7
    Affected ranges
    • ECOSYSTEM: < 3.6.13-2ubuntu1.8

    Update to 3.6.13-2ubuntu1.8

  • gnutls28 Ubuntu:22.04:LTS

    Versions
    • 3.7.1-5ubuntu1
    • 3.7.2-2ubuntu1
    • 3.7.2-4ubuntu1
    • 3.7.2-5ubuntu1
    • 3.7.3-4ubuntu1
    • 3.7.3-4ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 3.7.3-4ubuntu1.2

    Update to 3.7.3-4ubuntu1.2

Original sources

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