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 – Updated: 2025-11-03 19:29

Title

Timing side-channel in ECDSA signature computation

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.

Severity ?

No CVSS data available.

CWE

CWE-385 - Covert Timing Channel

Assigner

openssl

References

URL

Tags

	https://openssl-library.org/news/secadv/20250120.txt	vendor-advisory
	https://github.com/openssl/openssl/commit/77c608f…	patch
	https://github.com/openssl/openssl/commit/392dcb3…	patch
	https://github.com/openssl/openssl/commit/4b1cb94…	patch
	https://github.com/openssl/openssl/commit/2af62e7…	patch
	https://github.com/openssl/openssl/commit/07272b0…	patch
	https://github.openssl.org/openssl/extended-relea…	patch
	https://github.openssl.org/openssl/extended-relea…	patch

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Affected: 3.4.0 , < 3.4.1 (semver) Affected: 3.3.0 , < 3.3.3 (semver) Affected: 3.2.0 , < 3.2.4 (semver) Affected: 3.1.0 , < 3.1.8 (semver) Affected: 3.0.0 , < 3.0.16 (semver) Affected: 1.1.1 , < 1.1.1zb (custom) Affected: 1.0.2 , < 1.0.2zl (custom)

Credits

George Pantelakis (Red Hat) Alicja Kario (Red Hat) Tomáš Mráz

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 observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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