Vulnerability-Lookup

GHSA-PJ6M-JC6G-72C4

Vulnerability from github – Published: 2022-03-11 00:02 – Updated: 2022-03-17 00:01

Details

The pointer-validation logic in util/mem_util.rs in Occlum before 0.26.0 for Intel SGX acts as a confused deputy that allows a local attacker to access unauthorized information via side-channel analysis.

Severity

5.5 (Medium)


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

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  "affected": [],
  "aliases": [
    "CVE-2021-44421"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-10T17:44:00Z",
    "severity": "MODERATE"
  },
  "details": "The pointer-validation logic in util/mem_util.rs in Occlum before 0.26.0 for Intel SGX acts as a confused deputy that allows a local attacker to access unauthorized information via side-channel analysis.",
  "id": "GHSA-pj6m-jc6g-72c4",
  "modified": "2022-03-17T00:01:43Z",
  "published": "2022-03-11T00:02:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44421"
    },
    {
      "type": "WEB",
      "url": "https://github.com/occlum/occlum/commit/36918e42bf6732c4d3996bc99eb013eb6b90b249"
    },
    {
      "type": "WEB",
      "url": "https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L130"
    },
    {
      "type": "WEB",
      "url": "https://github.com/occlum/occlum/blob/821ea843ae21037e6cff5268306d2da1fb131552/src/libos/src/util/mem_util.rs#L51"
    },
    {
      "type": "WEB",
      "url": "https://github.com/occlum/occlum/compare/0.25.0...v0.26.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
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  ]
}

CVE-2021-44421 (GCVE-0-2021-44421)

Vulnerability from cvelistv5 – Published: 2022-03-06 20:03 – Updated: 2024-08-04 04:25

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2339 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/occlum/occlum/blob/821ea843ae2…	x_refsource_MISC
https://github.com/occlum/occlum/blob/821ea843ae2…	x_refsource_MISC
https://github.com/occlum/occlum/commit/36918e42b…	x_refsource_CONFIRM
https://github.com/occlum/occlum/compare/0.25.0..…	x_refsource_CONFIRM

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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.

Vulnerability timeline

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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.

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