Vulnerability-Lookup

GHSA-Q7MP-R58X-5FJF

Vulnerability from github – Published: 2022-05-24 17:46 – Updated: 2024-03-25 03:31

Details

Incorrect computation of branch displacements in BPF JIT compilers the Linux kernel can be abused to execute arbitrary code in Kernel mode.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-29154"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-77"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-08T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "Incorrect computation of branch displacements in BPF JIT compilers the Linux kernel can be abused to execute arbitrary code in Kernel mode.",
  "id": "GHSA-q7mp-r58x-5fjf",
  "modified": "2024-03-25T03:31:42Z",
  "published": "2022-05-24T17:46:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29154"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=26f55a59dc65ff77cd1c4b37991e26497fc68049"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4d456436bfb2fe412ee2cd489f7658449b098"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=26757760"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210604-0006"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2021/04/08/1"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-29154 (GCVE-0-2021-29154)

Vulnerability from cvelistv5 – Published: 2021-04-08 00:00 – Updated: 2024-08-03 22:02

Summary

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

10 references

URL	Tags
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://www.oracle.com/security-alerts/cpujul2022.html
https://www.openwall.com/lists/oss-security/2021/…
https://news.ycombinator.com/item?id=26757760
http://packetstormsecurity.com/files/162434/Kerne…
https://security.netapp.com/advisory/ntap-2021060…
https://git.kernel.org/cgit/linux/kernel/git/torv…
https://git.kernel.org/cgit/linux/kernel/git/torv…

Date Public

2021-04-08 00:00

Show details on NVD website

JSON

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{
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:02:50.602Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "FEDORA-2021-e71c033f88",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M/"
          },
          {
            "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
          },
          {
            "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2021/04/08/1"
          },
          {
            "tags": [
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            ],
            "url": "https://news.ycombinator.com/item?id=26757760"
          },
          {
            "tags": [
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            ],
            "url": "http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html"
          },
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            "tags": [
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            "url": "https://security.netapp.com/advisory/ntap-20210604-0006/"
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              "x_transferred"
            ],
            "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4d456436bfb2fe412ee2cd489f7658449b098"
          },
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        "title": "CVE Program Container"
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    "cna": {
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          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
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      "datePublic": "2021-04-08T00:00:00.000Z",
      "descriptions": [
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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        "dateUpdated": "2024-03-25T00:40:17.453Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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        },
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        },
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          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
          "tags": [
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          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
        },
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          "url": "https://www.openwall.com/lists/oss-security/2021/04/08/1"
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          "url": "https://news.ycombinator.com/item?id=26757760"
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          "url": "http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html"
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    "assignerShortName": "mitre",
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    "datePublished": "2021-04-08T00:00:00.000Z",
    "dateReserved": "2021-03-24T00:00:00.000Z",
    "dateUpdated": "2024-08-03T22:02:50.602Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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.

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.
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GHSA-Q7MP-R58X-5FJF

CVE-2021-29154 (GCVE-0-2021-29154)

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