Improper Protection Against Physical Side Channels Affecting gnutls-c++ package, versions <0:3.8.0-379.amzn2023.0.5


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.44% (75th percentile)

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  • Snyk IDSNYK-AMZN2023-GNUTLSC-6393812
  • published6 Mar 2024
  • disclosed16 Jan 2024

Introduced: 16 Jan 2024

CVE-2024-0553  (opens in a new tab)
CWE-1300  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 gnutls-c++ to version 0:3.8.0-379.amzn2023.0.5 or higher.
This issue was patched in ALAS2023-2024-548.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls-c++ package and not the gnutls-c++ package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1