CVE-2024-13176 (GCVE-0-2024-13176)
Vulnerability from cvelistv5
Published
2025-01-20 13:29
Modified
2025-05-26 18:03
Severity ?
CWE
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
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/07272b05b04836a762b4baa874958af51d513844
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/2af62e74fb59bc469506bc37eb2990ea408d9467
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/392dcb336405a0c94486aa6655057f59fd3a0902
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/4b1cb94a734a7d4ec363ac0a215a25c181e11f65
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/77c608f4c8857e63e98e66444e2e761c9627916f
openssl-security@openssl.orghttps://github.openssl.org/openssl/extended-releases/commit/0d5fd1ab987f7571e2c955d8d8b638fc0fb54ded
openssl-security@openssl.orghttps://github.openssl.org/openssl/extended-releases/commit/a2639000db19878d5d89586ae7b725080592ae86
openssl-security@openssl.orghttps://openssl-library.org/news/secadv/20250120.txt
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/01/20/2
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00028.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250124-0005/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250418-0010/
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
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However, measuring\\nthe timing would require either local access to the signing application or\\na very fast network connection with low latency.\\n\\nThere is a timing signal of around 300 nanoseconds when the top word of\\nthe inverted ECDSA nonce value is zero. This can happen with significant\\nprobability only for some of the supported elliptic curves. In particular\\nthe NIST P-521 curve is affected. To be able to measure this leak, the attacker\\nprocess must either be located in the same physical computer or must\\nhave a very fast network connection with low latency. For that reason\\nthe severity of this vulnerability is Low.\\n\\nThe FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are affected by this issue.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Issue summary: A timing side-channel which could potentially allow recovering\u003cbr\u003ethe private key exists in the ECDSA signature computation.\u003cbr\u003e\u003cbr\u003eImpact summary: A timing side-channel in ECDSA signature computations\u003cbr\u003ecould allow recovering the private key by an attacker. However, measuring\u003cbr\u003ethe timing would require either local access to the signing application or\u003cbr\u003ea very fast network connection with low latency.\u003cbr\u003e\u003cbr\u003eThere is a timing signal of around 300 nanoseconds when the top word of\u003cbr\u003ethe inverted ECDSA nonce value is zero. This can happen with significant\u003cbr\u003eprobability only for some of the supported elliptic curves. In particular\u003cbr\u003ethe NIST P-521 curve is affected. To be able to measure this leak, the attacker\u003cbr\u003eprocess must either be located in the same physical computer or must\u003cbr\u003ehave a very fast network connection with low latency. For that reason\u003cbr\u003ethe severity of this vulnerability is Low.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are affected by this issue.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-385\", \"description\": \"CWE-385 Covert Timing Channel\"}]}], \"providerMetadata\": {\"orgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"shortName\": \"openssl\", \"dateUpdated\": \"2025-03-18T07:51:11.697Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-13176\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-26T18:03:44.262Z\", \"dateReserved\": \"2025-01-07T09:34:54.572Z\", \"assignerOrgId\": \"3a12439a-ef3a-4c79-92e6-6081a721f1e5\", \"datePublished\": \"2025-01-20T13:29:57.047Z\", \"assignerShortName\": \"openssl\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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