Vulnerability-Lookup

OESA-2021-1433 (CVE-2021-3772)

Vulnerability from osv_openeuler – Published: 2021-11-19 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.(CVE-2021-3772)

In memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to uninitialized data. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-171418586References: Upstream kernel(CVE-2021-0938)

Severity

5.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3772	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-0938	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "kernel-tools-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python2-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python3-perf-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-tools-devel-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "perf-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "bpftool-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-source-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-tools-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python3-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-debugsource-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "bpftool-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python2-perf-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-devel-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "perf-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm"
        ],
        "src": [
          "kernel-4.19.90-2111.4.0.0122.oe1.src.rpm"
        ],
        "x86_64": [
          "kernel-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-debugsource-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "perf-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-source-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "perf-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python3-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "bpftool-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "bpftool-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-tools-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-tools-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python2-perf-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-tools-devel-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python3-perf-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-devel-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python2-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.19.90-2111.4.0.0122.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "kernel-tools-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python3-perf-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "perf-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python2-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python2-perf-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "bpftool-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-tools-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "bpftool-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "python3-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-debugsource-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-debuginfo-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "perf-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-source-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-tools-devel-4.19.90-2111.4.0.0122.oe1.aarch64.rpm",
          "kernel-devel-4.19.90-2111.4.0.0122.oe1.aarch64.rpm"
        ],
        "src": [
          "kernel-4.19.90-2111.4.0.0122.oe1.src.rpm"
        ],
        "x86_64": [
          "python2-perf-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python3-perf-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-source-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-tools-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "perf-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "bpftool-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-tools-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-tools-devel-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python2-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-devel-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-debugsource-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "python3-perf-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "kernel-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "perf-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm",
          "bpftool-debuginfo-4.19.90-2111.4.0.0122.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.19.90-2111.4.0.0122.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.(CVE-2021-3772)\r\n\r\nIn memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to uninitialized data. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-171418586References: Upstream kernel(CVE-2021-0938)",
  "id": "OESA-2021-1433",
  "modified": "2026-08-06T11:04:42Z",
  "published": "2021-11-19T11:04:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1433"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3772"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0938"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2021-3772",
    "CVE-2021-0938"
  ]
}

CVE-2021-0938 (GCVE-0-2021-0938)

Vulnerability from cvelistv5 – Published: 2021-10-25 13:20 – Updated: 2024-08-03 15:55

Summary

Severity

No CVSS data available.

CWE

Information disclosure

Assigner

google_android Google root

References

1 reference

URL	Tags
https://source.android.com/security/bulletin/pixe…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Android	Affected: Android kernel

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:55:18.271Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://source.android.com/security/bulletin/pixel/2021-10-01"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Android",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Android kernel"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to uninitialized data. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-171418586References: Upstream kernel"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Information disclosure",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-25T13:20:39.000Z",
        "orgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6",
        "shortName": "google_android"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://source.android.com/security/bulletin/pixel/2021-10-01"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@android.com",
          "ID": "CVE-2021-0938",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Android",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Android kernel"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to uninitialized data. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-171418586References: Upstream kernel"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Information disclosure"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://source.android.com/security/bulletin/pixel/2021-10-01",
              "refsource": "MISC",
              "url": "https://source.android.com/security/bulletin/pixel/2021-10-01"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "baff130e-b8d5-4e15-b3d3-c3cf5d5545c6",
    "assignerShortName": "google_android",
    "cveId": "CVE-2021-0938",
    "datePublished": "2021-10-25T13:20:39.000Z",
    "dateReserved": "2020-11-06T00:00:00.000Z",
    "dateUpdated": "2024-08-03T15:55:18.271Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2021-3772 (GCVE-0-2021-3772)

Vulnerability from cvelistv5 – Published: 2022-03-02 00:00 – Updated: 2024-08-03 17:09

Summary

Severity

No CVSS data available.

CWE

CWE-354 - - Improper Validation of Integrity Check Value

Assigner

redhat redhat root

References

8 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2000694
https://ubuntu.com/security/CVE-2021-3772
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://github.com/torvalds/linux/commit/32f8807a…
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://www.debian.org/security/2022/dsa-5096	vendor-advisory
https://www.oracle.com/security-alerts/cpujul2022.html
https://security.netapp.com/advisory/ntap-2022100…

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: Fixed in linux kernel v5.15 and above

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:08.707Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2000694"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ubuntu.com/security/CVE-2021-3772"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=32f8807a48ae55be0e76880cfe8607a18b5bb0df"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df"
          },
          {
            "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
          },
          {
            "name": "DSA-5096",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5096"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20221007-0001/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in linux kernel v5.15 and above"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-354",
              "description": "CWE-354 - Improper Validation of Integrity Check Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-07T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2000694"
        },
        {
          "url": "https://ubuntu.com/security/CVE-2021-3772"
        },
        {
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=32f8807a48ae55be0e76880cfe8607a18b5bb0df"
        },
        {
          "url": "https://github.com/torvalds/linux/commit/32f8807a48ae55be0e76880cfe8607a18b5bb0df"
        },
        {
          "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
        },
        {
          "name": "DSA-5096",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2022/dsa-5096"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20221007-0001/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-3772",
    "datePublished": "2022-03-02T00:00:00.000Z",
    "dateReserved": "2021-09-06T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:09:08.707Z",
    "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.

Action not permitted

OESA-2021-1433 (CVE-2021-3772)

CVE-2021-0938 (GCVE-0-2021-0938)

CVE-2021-3772 (GCVE-0-2021-3772)

Tags

Sightings

Nomenclature

Related by attack behaviour