BREW-AWSCLI@1-CVE-2020-25658 (GHSA-XRX6-FMXQ-RJJ2)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:37 – Updated: 2026-09-09 23:42 – Source website
VLAI
Summary
Timing attacks in python-rsa
Details

It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA

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
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "rsa",
        "resource_purl": "pkg:pypi/rsa@4.7.2",
        "upstream_fixed_in": "4.7"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "awscli@1",
        "purl": "pkg:brew/awscli%401"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.46.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/rsa@4.7.2",
        "name": "rsa",
        "resource": "rsa",
        "strategy": "registry",
        "subject_version": "4.7.2"
      }
    ]
  },
  "details": "It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA",
  "id": "BREW-awscli@1-CVE-2020-25658",
  "modified": "2026-09-09T23:42:43Z",
  "published": "2026-08-13T16:37:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25658"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sybrenstuvel/python-rsa/issues/165"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sybrenstuvel/python-rsa/commit/dae8ce0d85478e16f2368b2341632775313d41ed"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2020-25658"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1889972"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-xrx6-fmxq-rjj2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/rsa/PYSEC-2020-100.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sybrenstuvel/python-rsa"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2022:1716"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2021:0637"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:5634"
    }
  ],
  "schema_version": "1.7.3",
  "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": "Timing attacks in python-rsa",
  "upstream": [
    "GHSA-xrx6-fmxq-rjj2",
    "CVE-2020-25658",
    "PYSEC-2020-100"
  ]
}



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