Vulnerability-Lookup

OESA-2023-1626 (CVE-2020-21528)

Vulnerability from osv_openeuler – Published: 2023-09-15 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

nasm security update

Details

NASM is the Netwide Assembler, a free portable assembler for the Intel 80x86 microprocessor series, using primarily the traditional Intel instruction mnemonics and syntax. It also provides tools in RDOFF binary format, includes linker, library manager, loader, and information dump.

Security Fix(es):

A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.(CVE-2020-21528)

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-21528	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "nasm-debugsource-2.15.03-7.oe1.aarch64.rpm",
          "nasm-debuginfo-2.15.03-7.oe1.aarch64.rpm",
          "nasm-2.15.03-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "nasm-help-2.15.03-7.oe1.noarch.rpm"
        ],
        "src": [
          "nasm-2.15.03-7.oe1.src.rpm"
        ],
        "x86_64": [
          "nasm-2.15.03-7.oe1.x86_64.rpm",
          "nasm-debuginfo-2.15.03-7.oe1.x86_64.rpm",
          "nasm-debugsource-2.15.03-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "nasm",
        "purl": "pkg:rpm/openEuler/nasm\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.15.03-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "nasm-debuginfo-2.15.03-7.oe1.aarch64.rpm",
          "nasm-2.15.03-7.oe1.aarch64.rpm",
          "nasm-debugsource-2.15.03-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "nasm-help-2.15.03-7.oe1.noarch.rpm"
        ],
        "src": [
          "nasm-2.15.03-7.oe1.src.rpm"
        ],
        "x86_64": [
          "nasm-debuginfo-2.15.03-7.oe1.x86_64.rpm",
          "nasm-debugsource-2.15.03-7.oe1.x86_64.rpm",
          "nasm-2.15.03-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "nasm",
        "purl": "pkg:rpm/openEuler/nasm\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.15.03-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "nasm-debugsource-2.15.05-6.oe2203.aarch64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203.aarch64.rpm",
          "nasm-2.15.05-6.oe2203.aarch64.rpm",
          "nasm-debugsource-2.15.05-6.oe2203sp1.aarch64.rpm",
          "nasm-2.15.05-6.oe2203sp1.aarch64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp1.aarch64.rpm",
          "nasm-debugsource-2.15.05-6.oe2203sp2.aarch64.rpm",
          "nasm-2.15.05-6.oe2203sp2.aarch64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp2.aarch64.rpm"
        ],
        "noarch": [
          "nasm-help-2.15.05-6.oe2203.noarch.rpm",
          "nasm-help-2.15.05-6.oe2203sp1.noarch.rpm",
          "nasm-help-2.15.05-6.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "nasm-2.15.05-6.oe2203.src.rpm",
          "nasm-2.15.05-6.oe2203sp1.src.rpm",
          "nasm-2.15.05-6.oe2203sp2.src.rpm"
        ],
        "x86_64": [
          "nasm-debugsource-2.15.05-6.oe2203.x86_64.rpm",
          "nasm-2.15.05-6.oe2203.x86_64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203.x86_64.rpm",
          "nasm-debugsource-2.15.05-6.oe2203sp1.x86_64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp1.x86_64.rpm",
          "nasm-2.15.05-6.oe2203sp1.x86_64.rpm",
          "nasm-debugsource-2.15.05-6.oe2203sp2.x86_64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp2.x86_64.rpm",
          "nasm-2.15.05-6.oe2203sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS",
        "name": "nasm",
        "purl": "pkg:rpm/openEuler/nasm\u0026distro=openEuler-22.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.15.05-6.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "nasm-debugsource-2.15.05-6.oe2203sp1.aarch64.rpm",
          "nasm-2.15.05-6.oe2203sp1.aarch64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp1.aarch64.rpm"
        ],
        "noarch": [
          "nasm-help-2.15.05-6.oe2203sp1.noarch.rpm"
        ],
        "src": [
          "nasm-2.15.05-6.oe2203sp1.src.rpm"
        ],
        "x86_64": [
          "nasm-debugsource-2.15.05-6.oe2203sp1.x86_64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp1.x86_64.rpm",
          "nasm-2.15.05-6.oe2203sp1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP1",
        "name": "nasm",
        "purl": "pkg:rpm/openEuler/nasm\u0026distro=openEuler-22.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.15.05-6.oe2203sp1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "nasm-debugsource-2.15.05-6.oe2203sp2.aarch64.rpm",
          "nasm-2.15.05-6.oe2203sp2.aarch64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp2.aarch64.rpm"
        ],
        "noarch": [
          "nasm-help-2.15.05-6.oe2203sp2.noarch.rpm"
        ],
        "src": [
          "nasm-2.15.05-6.oe2203sp2.src.rpm"
        ],
        "x86_64": [
          "nasm-debugsource-2.15.05-6.oe2203sp2.x86_64.rpm",
          "nasm-debuginfo-2.15.05-6.oe2203sp2.x86_64.rpm",
          "nasm-2.15.05-6.oe2203sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP2",
        "name": "nasm",
        "purl": "pkg:rpm/openEuler/nasm\u0026distro=openEuler-22.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.15.05-6.oe2203sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "NASM is the Netwide Assembler, a free portable assembler for the Intel 80x86 microprocessor series, using primarily the traditional Intel instruction mnemonics and syntax. It also provides tools in RDOFF binary format, includes linker, library manager, loader, and information dump.\r\n\r\nSecurity Fix(es):\r\n\r\nA Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.(CVE-2020-21528)",
  "id": "OESA-2023-1626",
  "modified": "2026-08-06T11:06:04Z",
  "published": "2023-09-15T11:06:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1626"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-21528"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "nasm security update",
  "upstream": [
    "CVE-2020-21528"
  ]
}

CVE-2020-21528 (GCVE-0-2020-21528)

Vulnerability from cvelistv5 – Published: 2023-08-22 00:00 – Updated: 2024-08-04 14:30

Summary

A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://bugzilla.nasm.us/show_bug.cgi?id=3392637
https://security.gentoo.org/glsa/202312-09	vendor-advisory

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T14:30:33.246Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.nasm.us/show_bug.cgi?id=3392637"
          },
          {
            "name": "GLSA-202312-09",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202312-09"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-22T13:06:21.465Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://bugzilla.nasm.us/show_bug.cgi?id=3392637"
        },
        {
          "name": "GLSA-202312-09",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202312-09"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-21528",
    "datePublished": "2023-08-22T00:00:00.000Z",
    "dateReserved": "2020-08-13T00:00:00.000Z",
    "dateUpdated": "2024-08-04T14:30:33.246Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.