emb3d - tid-330

tid-330

Vulnerability from emb3d

Type

Link

Description

Algorithms or code implementations of cryptographic processes will sometimes leak information by ending operations early or late based on, and correlated with, the input/key. If a threat actor is able to execute code on a processor performing a cryptographic operation, they may be able to infer the resulting key from that operation by measuring the timing it takes to perform the various functions.

CWE

CWE-208: Observable Timing Discrepancy (Base)
CWE-1254: Incorrect Comparison Logic Granularity (Base)

CVE-2024-13176 (GCVE-0-2024-13176)

Vulnerability from cvelistv5

Published

2025-01-20 13:29

Modified

2025-05-26 18:03

Severity ?

CWE

CWE-385 - Covert Timing Channel

Summary

Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would require either local access to the signing application or a very fast network connection with low latency. There is a timing signal of around 300 nanoseconds when the top word of the inverted ECDSA nonce value is zero. This can happen with significant probability only for some of the supported elliptic curves. In particular the NIST P-521 curve is affected. To be able to measure this leak, the attacker process must either be located in the same physical computer or must have a very fast network connection with low latency. For that reason the severity of this vulnerability is Low. The FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are affected by this issue.

References

►

URL

Tags

	https://openssl-library.org/news/secadv/20250120.txt	vendor-advisory
	https://github.com/openssl/openssl/commit/77c608f4c8857e63e98e66444e2e761c9627916f	patch
	https://github.com/openssl/openssl/commit/392dcb336405a0c94486aa6655057f59fd3a0902	patch
	https://github.com/openssl/openssl/commit/4b1cb94a734a7d4ec363ac0a215a25c181e11f65	patch
	https://github.com/openssl/openssl/commit/2af62e74fb59bc469506bc37eb2990ea408d9467	patch
	https://github.com/openssl/openssl/commit/07272b05b04836a762b4baa874958af51d513844	patch
	https://github.openssl.org/openssl/extended-releases/commit/a2639000db19878d5d89586ae7b725080592ae86	patch
	https://github.openssl.org/openssl/extended-releases/commit/0d5fd1ab987f7571e2c955d8d8b638fc0fb54ded	patch

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Version: 3.4.0 ≤ Version: 3.3.0 ≤ Version: 3.2.0 ≤ Version: 3.1.0 ≤ Version: 3.0.0 ≤ Version: 1.1.1 < 1.1.1zb Version: 1.0.2 < 1.0.2zl

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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