github - ghsa-pc43-829f-g5gr

GHSA-PC43-829F-G5GR

Vulnerability from github – Published: 2022-05-24 17:25 – Updated: 2022-05-24 17:25

Details

An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-8904"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-08-12T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later.",
  "id": "GHSA-pc43-829f-g5gr",
  "modified": "2022-05-24T17:25:27Z",
  "published": "2022-05-24T17:25:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8904"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-8904 (GCVE-0-2020-8904)

Vulnerability from cvelistv5 – Published: 2020-08-12 18:20 – Updated: 2024-09-16 23:21

Title

Arbitrary trusted memory overwrite vulnerability in Asylo

Summary

Severity ?

6.4 (Medium)


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

CWE

CWE-823 - Use of Out-of-range Pointer Offset

Assigner

Google

References

URL

Tags

https://github.com/google/asylo/commit/e582f36ac4…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Google LLC	Asylo	Affected: stable , < 0.6.0 (custom)

Credits

Qinkun Bao, Zhaofeng Chen, Mingshen Sun, and Kang Li from Baidu Security

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-PC43-829F-G5GR

CVE-2020-8904 (GCVE-0-2020-8904)

Tags

Sightings

Nomenclature