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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2016-8871

In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an "OAEP side channel" attack.

Products
Not specified
Affected versions
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Fixed versions
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CVEs
CVE-2016-8871
Confirmed fixed CVEs
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Updated in this feed
1 Nov 2026, 08:17 UTC · Revision 1

Source evidence

CVE-2016-8871

core-osv · Original source

Published 28 Oct 2016, 15:59 UTC

In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an "OAEP side channel" attack.

osv:CVE-2016-8871
Complete source record
{
  "id": "49da3c7a1ff2b3ba217511cdcbd2ac8766056df38eb0fc768e73af3fc36d6dbe",
  "url": "https://osv.dev/vulnerability/CVE-2016-8871",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-8871",
    "summary": "In Botan 1.11.29 through 1.11.32, RSA decryption with certain padding options had a detectable timing channel which could given sufficient queries be used to recover plaintext, aka an \"OAEP side channel\" attack.",
    "evidence": "osv:CVE-2016-8871",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2016-8871",
      "aliases": [
        "CVE-2016-8871"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/randombit/botan",
              "type": "GIT",
              "events": [
                {
                  "introduced": "67a756ac2bef809be53ccdce7773682547c857eb"
                },
                {
                  "last_affected": "c83872bb775916d88196fb2eca6971329711e2d3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:botan_project:botan:1.11.29:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.11.29"
                      },
                      {
                        "last_affected": "1.11.29"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:botan_project:botan:1.11.30:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.11.30"
                      },
                      {
                        "last_affected": "1.11.30"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:botan_project:botan:1.11.31:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.11.31"
                      },
                      {
                        "last_affected": "1.11.31"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:botan_project:botan:1.11.32:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.11.32"
                      },
                      {
                        "last_affected": "1.11.32"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.11.29",
            "1.11.30",
            "1.11.31",
            "1.11.32"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-8871.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:05.390328088Z",
      "provider": "osv",
      "references": [
        "https://botan.randombit.net/security.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-8871",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440746,
  "published_at": "2016-10-28T15:59:15.47+00:00"
}