ubuntu-cve-2024-13176
Vulnerability from osv_ubuntu
Published
2025-01-20 14:15
Modified
2026-06-16 11:15
Summary
Details

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
4.1 (Medium)
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
N/A (UNKNOWN)
low
References
To clipboard 

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          },
          {
            "binary_name": "qemu-efi-loongarch64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "qemu-efi-riscv64",
            "binary_version": "2025.02-8ubuntu3"
          }
        ],
        "priority_reason": "Upstream has rated this issue to be low severity"
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "edk2",
        "purl": "pkg:deb/ubuntu/edk2@2025.02-8ubuntu3?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2025.02-8ubuntu3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2025.02-3ubuntu2",
        "2025.02-8",
        "2025.02-8ubuntu1",
        "2025.02-8ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "efi-shell-aa64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "efi-shell-arm",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "efi-shell-ia32",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "efi-shell-loongarch64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "efi-shell-riscv64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "efi-shell-x64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "ovmf",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "ovmf-ia32",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "ovmf-inteltdx",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "qemu-efi-aarch64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "qemu-efi-arm",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "qemu-efi-loongarch64",
            "binary_version": "2025.02-8ubuntu3"
          },
          {
            "binary_name": "qemu-efi-riscv64",
            "binary_version": "2025.02-8ubuntu3"
          }
        ],
        "priority_reason": "Upstream has rated this issue to be low severity"
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "edk2",
        "purl": "pkg:deb/ubuntu/edk2@2025.02-8ubuntu3?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2025.02-8ubuntu3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2024-13176",
  "modified": "2026-06-16T11:15:39Z",
  "published": "2025-01-20T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-13176"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-13176"
    },
    {
      "type": "REPORT",
      "url": "https://openssl-library.org/news/secadv/20250120.txt"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7264-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7278-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7894-1"
    }
  ],
  "related": [
    "USN-7264-1",
    "USN-7278-1",
    "USN-7894-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-13176"
  ]
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.