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nss vulnerabilities

Vulnerabilities published for nss in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 84

  1. CVE-2024-7531

    Medium · CVSS 6.3EPSS 0.44%Fix available

    CVE-2024-7531

    Calling `PK11_Encrypt()` in NSS using CKM_CHACHA20 and the same buffer for input and output can result in plaintext on an Intel Sandy Bridge processor. In Firefox this only affects the QUIC header protection feature when the connection is using the ChaCha20-Poly1305 cipher suite. The most likely outcome is connection failure, but if the connection persists despite the high packet loss it could be possible for a network observer to identify packets as coming from the same source despite a network path change. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.

    • Update to 2:3.103-1
    Published Updated
  2. CVE-2023-4421

    Medium · CVSS 6.5EPSS 0.76%Fix available

    CVE-2023-4421

    The NSS code used for checking PKCS#1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected ciphertexts, the attacker would be able to decrypt a previously intercepted PKCS#1 v1.5 ciphertext (for example, to decrypt a TLS session that used RSA key exchange), or forge a signature using the victim's key. The issue was fixed by implementing the implicit rejection algorithm, in which the NSS returns a deterministic random message in case invalid padd

    • Update to 2:3.61-1
    Published Updated
  3. CVE-2021-43527

    Critical · CVSS 9.8EPSS 17.56%Fix available

    CVE-2021-43527

    NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impa

    • Update to 2:3.73-1
    Published Updated
  4. CVE-2020-12403

    Critical · CVSS 9.1EPSS 1.54%Fix available

    CVE-2020-12403

    A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.

    • Update to 2:3.55-1
    Published Updated

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