pysec - pysec-2021-62

pysec-2021-62

Vulnerability from pysec

Published

2021-01-11 16:15

Modified

2021-01-19 21:48

Details

python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.

Impacted products

Name	purl
cryptography	pkg:pypi/cryptography

Aliases

JSON

To clipboard

{
   affected: [
      {
         package: {
            ecosystem: "PyPI",
            name: "cryptography",
            purl: "pkg:pypi/cryptography",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "3.2.1",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
         versions: [
            "0.1",
            "0.2",
            "0.2.1",
            "0.2.2",
            "0.3",
            "0.4",
            "0.5",
            "0.5.1",
            "0.5.2",
            "0.5.3",
            "0.5.4",
            "0.6",
            "0.6.1",
            "0.7",
            "0.7.1",
            "0.7.2",
            "0.8",
            "0.8.1",
            "0.8.2",
            "0.9",
            "0.9.1",
            "0.9.2",
            "0.9.3",
            "1.0",
            "1.0.1",
            "1.0.2",
            "1.1",
            "1.1.1",
            "1.1.2",
            "1.2",
            "1.2.1",
            "1.2.2",
            "1.2.3",
            "1.3",
            "1.3.1",
            "1.3.2",
            "1.3.3",
            "1.3.4",
            "1.4",
            "1.5",
            "1.5.1",
            "1.5.2",
            "1.5.3",
            "1.6",
            "1.7",
            "1.7.1",
            "1.7.2",
            "1.8",
            "1.8.1",
            "1.8.2",
            "1.9",
            "2.0",
            "2.0.1",
            "2.0.2",
            "2.0.3",
            "2.1",
            "2.1.1",
            "2.1.2",
            "2.1.3",
            "2.1.4",
            "2.2",
            "2.2.1",
            "2.2.2",
            "2.3",
            "2.3.1",
            "2.4",
            "2.4.1",
            "2.4.2",
            "2.5",
            "2.6",
            "2.6.1",
            "2.7",
            "2.8",
            "2.9",
            "2.9.1",
            "2.9.2",
            "3.0",
            "3.1",
            "3.1.1",
            "3.2",
         ],
      },
   ],
   aliases: [
      "CVE-2020-25659",
      "GHSA-hggm-jpg3-v476",
   ],
   details: "python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.",
   id: "PYSEC-2021-62",
   modified: "2021-01-19T21:48:00Z",
   published: "2021-01-11T16:15:00Z",
   references: [
      {
         type: "WEB",
         url: "https://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b",
      },
      {
         type: "ADVISORY",
         url: "https://github.com/advisories/GHSA-hggm-jpg3-v476",
      },
   ],
}

ghsa-hggm-jpg3-v476

Vulnerability from github

Published

2020-10-27 20:33

Modified

2024-11-18 16:26

Severity ?

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
8.2 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

RSA decryption vulnerable to Bleichenbacher timing vulnerability

Details

RSA decryption was vulnerable to Bleichenbacher timing vulnerabilities, which would impact people using RSA decryption in online scenarios. This is fixed in cryptography 3.2.

Show details on source website

JSON

To clipboard

{
   affected: [
      {
         package: {
            ecosystem: "PyPI",
            name: "cryptography",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "3.2",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2020-25659",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-385",
      ],
      github_reviewed: true,
      github_reviewed_at: "2020-10-27T20:32:44Z",
      nvd_published_at: "2021-01-11T16:15:00Z",
      severity: "HIGH",
   },
   details: "RSA decryption was vulnerable to Bleichenbacher timing vulnerabilities, which would impact people using RSA decryption in online scenarios. This is fixed in cryptography 3.2. ",
   id: "GHSA-hggm-jpg3-v476",
   modified: "2024-11-18T16:26:10Z",
   published: "2020-10-27T20:33:13Z",
   references: [
      {
         type: "WEB",
         url: "https://github.com/pyca/cryptography/security/advisories/GHSA-hggm-jpg3-v476",
      },
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2020-25659",
      },
      {
         type: "WEB",
         url: "https://github.com/pyca/cryptography/pull/5507",
      },
      {
         type: "WEB",
         url: "https://github.com/pyca/cryptography/commit/58494b41d6ecb0f56b7c5f05d5f5e3ca0320d494",
      },
      {
         type: "ADVISORY",
         url: "https://github.com/advisories/GHSA-hggm-jpg3-v476",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/pyca/cryptography",
      },
      {
         type: "WEB",
         url: "https://github.com/pypa/advisory-database/tree/main/vulns/cryptography/PYSEC-2021-62.yaml",
      },
      {
         type: "WEB",
         url: "https://pypi.org/project/cryptography",
      },
      {
         type: "WEB",
         url: "https://www.oracle.com/security-alerts/cpuapr2022.html",
      },
      {
         type: "WEB",
         url: "https://www.oracle.com/security-alerts/cpujul2022.html",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
         type: "CVSS_V3",
      },
      {
         score: "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
         type: "CVSS_V4",
      },
   ],
   summary: "RSA decryption vulnerable to Bleichenbacher timing vulnerability",
}

cve-2020-25659

Vulnerability from cvelistv5

Published

2021-01-11 15:37

Modified

2024-08-04 15:40

Severity ?

Summary

python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.

References

▼	URL	Tags
	https://github.com/pyca/cryptography/pull/5507/commits/ce1bef6f1ee06ac497ca0c837fbd1c7ef6c2472b	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	python-cryptography	Version: python-cryptography 3.2

Show details on NVD website

JSON

To clipboard

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-04T15:40:36.578Z",
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         },
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      cna: {
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   cveMetadata: {
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All sightings related to this event Export sightings related to this event

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.

Action not permitted

pysec-2021-62

Vulnerability from pysec

ghsa-hggm-jpg3-v476

Vulnerability from github

cve-2020-25659

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature