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OESA-2021-1408 (CVE-2021-41990)

Vulnerability from osv_openeuler – Published: 2021-10-30 11:04 – Updated: 2026-08-06 11:04 – Source website
VLAI
Summary
strongswan security update
Details

The strongSwan IPsec implementation supports both the IKEv1 and IKEv2 key exchange protocols in conjunction with the native NETKEY IPsec stack of the Linux kernel.

Security Fix(es):

The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur.(CVE-2021-41990)

The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.(CVE-2021-41991)

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "strongswan-5.7.2-7.oe1.aarch64.rpm",
          "strongswan-debuginfo-5.7.2-7.oe1.aarch64.rpm",
          "strongswan-debugsource-5.7.2-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "strongswan-help-5.7.2-7.oe1.noarch.rpm"
        ],
        "src": [
          "strongswan-5.7.2-7.oe1.src.rpm"
        ],
        "x86_64": [
          "strongswan-debuginfo-5.7.2-7.oe1.x86_64.rpm",
          "strongswan-5.7.2-7.oe1.x86_64.rpm",
          "strongswan-debugsource-5.7.2-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "strongswan",
        "purl": "pkg:rpm/openEuler/strongswan\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.7.2-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "strongswan-5.7.2-7.oe1.aarch64.rpm",
          "strongswan-debuginfo-5.7.2-7.oe1.aarch64.rpm",
          "strongswan-debugsource-5.7.2-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "strongswan-help-5.7.2-7.oe1.noarch.rpm"
        ],
        "src": [
          "strongswan-5.7.2-7.oe1.src.rpm"
        ],
        "x86_64": [
          "strongswan-debuginfo-5.7.2-7.oe1.x86_64.rpm",
          "strongswan-5.7.2-7.oe1.x86_64.rpm",
          "strongswan-debugsource-5.7.2-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
        "name": "strongswan",
        "purl": "pkg:rpm/openEuler/strongswan\u0026distro=openEuler-20.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.7.2-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The strongSwan IPsec implementation supports both the IKEv1 and IKEv2 key exchange protocols in conjunction with the native NETKEY IPsec stack of the Linux kernel.\r\n\r\nSecurity Fix(es):\r\n\r\nThe gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur.(CVE-2021-41990)\r\n\r\nThe in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to select a less-often-used cache entry by means of a random number generator, but this is not done correctly. Remote code execution might be a slight possibility.(CVE-2021-41991)",
  "id": "OESA-2021-1408",
  "modified": "2026-08-06T11:04:40Z",
  "published": "2021-10-30T11:04:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1408"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41990"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41991"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "strongswan security update",
  "upstream": [
    "CVE-2021-41990",
    "CVE-2021-41991"
  ]
}



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