GHSA-3hpv-hgvq-792m

GHSA-3hpv-hgvq-792m PUBLISHED CVSS 6.5 MEDIUM

Record from GitHub Advisory Database · Published December 12, 2023

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 padding is detected, as proposed in the Marvin Attack paper. This vulnerability affects NSS < 3.61.

Risk scores

CVSS 3.1

6.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Timeline

Dec 12, 2023 CVE Published
May 1, 2026 Security Advisory

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vulnetix vdb vuln GHSA-3hpv-hgvq-792m
vulnetix vdb fixes GHSA-3hpv-hgvq-792m

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-3hpv-hgvq-792m/fixes/registry"

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