Advisory Published

MFSA2023-53: Timing side-channel in PKCS#1 v1.5 decryption depadding code

First published: Tue Dec 12 2023(Updated: )

Timing side-channel in PKCS#1 v1.5 decryption depadding code

Affected SoftwareAffected VersionHow to fix
Mozilla Network Security Services (NSS)<3.61
3.61

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of MFSA2023-53?

    MFSA2023-53 has been classified with a critical severity level.

  • How do I fix MFSA2023-53?

    To fix MFSA2023-53, update your Mozilla Network Security Services (NSS) to version 3.61 or later.

  • What is the underlying issue in MFSA2023-53?

    MFSA2023-53 addresses a timing side-channel vulnerability in the PKCS#1 v1.5 decryption depadding code.

  • Which versions of NSS are affected by MFSA2023-53?

    MFSA2023-53 affects all versions of Mozilla Network Security Services (NSS) prior to 3.61.

  • What is a timing side-channel vulnerability as mentioned in MFSA2023-53?

    A timing side-channel vulnerability allows an attacker to gain sensitive information based on the time taken to execute cryptographic operations.

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