p PatchFirst

PatchFirst · Aktuelle Sicherheitslücken

Sicherheitslücken in gnutls28

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für gnutls28: 0. Davon im KEV-Katalog: 0.

Sicherheitslücken filtern
Filter zurücksetzen

Sicherheitslücken: 11

  1. CVE-2024-12243

    Mittel · CVSS 5.3EPSS 1,29%Korrektur verfügbar

    Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos

    A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.

    • Auf 3.6.13-2ubuntu1.12 aktualisieren
    Veröffentlicht Aktualisiert
  2. CVE-2024-28834

    Mittel · CVSS 5.3EPSS 0,72%Korrektur verfügbar

    Gnutls: vulnerable to minerva side-channel information leak

    A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel.

    • Auf 3.6.13-2ubuntu1.11 aktualisieren
    Veröffentlicht Aktualisiert
  3. CVE-2024-0553

    Hoch · CVSS 7.5EPSS 1,61%Korrektur verfügbar

    Gnutls: incomplete fix for cve-2023-5981

    A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange, potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.

    • Auf 3.6.13-2ubuntu1.10 aktualisieren
    Veröffentlicht Aktualisiert
  4. CVE-2023-0361

    Hoch · CVSS 7.4EPSS 1,45%Korrektur verfügbar

    CVE-2023-0361

    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.

    • Auf 3.6.13-2ubuntu1.8 aktualisieren
    Veröffentlicht Aktualisiert
  5. CVE-2021-4209

    Mittel · CVSS 6.5EPSS 1,91%Korrektur verfügbar

    CVE-2021-4209

    A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

    • Auf 3.6.13-2ubuntu1.7 aktualisieren
    Veröffentlicht Aktualisiert
  6. CVE-2020-24659

    Hoch · CVSS 7.5EPSS 3,83%Korrektur verfügbar

    CVE-2020-24659

    An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.

    • Auf 3.6.13-2ubuntu1.3 aktualisieren
    Veröffentlicht Aktualisiert
  7. CVE-2020-13777

    Hoch · CVSS 7.4EPSS 22,28%Korrektur verfügbar

    CVE-2020-13777

    GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

    • Auf 3.6.13-2ubuntu1.1 aktualisieren
    Veröffentlicht Aktualisiert

Prüfen Sie Ihren Server

Gleichen Sie Ihren installierten Stack und seine Versionen mit den aktuellen Sicherheitsmeldungen ab.

Prüfen Sie Ihren Server →