DEBIAN-CVE-2023-0361

    Dashboard / Vulnerabilities / DEBIAN-CVE-2023-0361

    DEBIAN-CVE-2023-0361

    Published: 15 Feb 2023Last Modified: 26 Oct 2026
    Upstream:
    CVE-2023-0361

    Summary:

    Details: 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.

    References: https://security-tracker.debian.org/tracker/CVE-2023-0361

    Affected packages

    Package

    Name: gnutls28

    Purl: pkg:deb/debian/gnutls28?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.7.8-5

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High