Findings

CVE-2024-0553

A vulnerability was found in GnuTLS.

Published Jan 16, 2024 · updated Oct 15, 2026 · gnu gnutls

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.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 16, 2024 · NIST NVD

    Detected

    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 res

  2. Oct 15, 2026 · NIST NVD

    Updated

    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 res

Affected

  • cpe fedoraproject/fedora39
  • cpe gnu/gnutlsversion unspecified
  • cpe redhat/enterprise linux8.0
  • cpe redhat/enterprise linux9.0

Sources

  • CVE.orgCVE-2024-0553

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2024-0553

    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-

    nvd.nist.gov

References

CVE-2024-0553 · ZeroDay Findings