{
  "fix": "RHSA-2021:0538",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0538",
  "summary": "RHSA-2021:0538, released February 16, 2021, fixes 4 CVEs across 10 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 10 packages",
  "released": "2021-02-16T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2020-12403, high severity",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01541,
  "maxCvss": 9.1,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2021:0538",
  "appliesTo": [
    {
      "product": "nss",
      "productUrl": "https://patchblox.com/security/product/linux/nss",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-devel",
      "productUrl": "https://patchblox.com/security/product/linux/nss-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-softokn",
      "productUrl": "https://patchblox.com/security/product/linux/nss-softokn",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-softokn-devel",
      "productUrl": "https://patchblox.com/security/product/linux/nss-softokn-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-softokn-freebl",
      "productUrl": "https://patchblox.com/security/product/linux/nss-softokn-freebl",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-softokn-freebl-devel",
      "productUrl": "https://patchblox.com/security/product/linux/nss-softokn-freebl-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-sysinit",
      "productUrl": "https://patchblox.com/security/product/linux/nss-sysinit",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-tools",
      "productUrl": "https://patchblox.com/security/product/linux/nss-tools",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-util",
      "productUrl": "https://patchblox.com/security/product/linux/nss-util",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    },
    {
      "product": "nss-util-devel",
      "productUrl": "https://patchblox.com/security/product/linux/nss-util-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:3.53.1-17.el8_3",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-12403",
      "url": "https://patchblox.com/security/cve/CVE-2020-12403",
      "title": "nss: Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.01541,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-6829",
      "url": "https://patchblox.com/security/cve/CVE-2020-6829",
      "title": "Firefox ESR and 1 other: When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which\u2026",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.3,
      "epss": 0.01479,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12401",
      "url": "https://patchblox.com/security/cve/CVE-2020-12401",
      "title": "Firefox ESR and 1 other: During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar\u2026",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.7,
      "epss": 0.00326,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-12400",
      "url": "https://patchblox.com/security/cve/CVE-2020-12400",
      "title": "Firefox ESR and 1 other: When converting coordinates from projective to affine, the modular inversion was not performed in constant\u2026",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.7,
      "epss": 0.0027,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}