github - ghsa-8v45-9mw2-ffmm

GHSA-8V45-9MW2-FFMM

Vulnerability from github – Published: 2022-05-24 17:20 – Updated: 2022-05-24 17:20

Details

A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sn_coap_parser_options_parse() parses the CoAP packet header starting from the message token. The length of the token in the received message is provided in the first byte parsed by the sn_coap_parser_options_parse() function. The length encoded in the message is not validated against the actual input buffer length before accessing the token. As a result, memory access outside of the intended boundary of the buffer may occur.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-12886"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-06-18T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A buffer over-read was discovered in the CoAP library in Arm Mbed OS 5.15.3. The CoAP parser is responsible for parsing received CoAP packets. The function sn_coap_parser_options_parse() parses the CoAP packet header starting from the message token. The length of the token in the received message is provided in the first byte parsed by the sn_coap_parser_options_parse() function. The length encoded in the message is not validated against the actual input buffer length before accessing the token. As a result, memory access outside of the intended boundary of the buffer may occur.",
  "id": "GHSA-8v45-9mw2-ffmm",
  "modified": "2022-05-24T17:20:51Z",
  "published": "2022-05-24T17:20:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12886"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ARMmbed/mbed-os/issues/12948"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ARMmbed/mbed-coap/pull/116"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-12886 (GCVE-0-2020-12886)

Vulnerability from cvelistv5 – Published: 2020-06-18 18:24 – Updated: 2024-08-04 12:11

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/ARMmbed/mbed-os/issues/12948	x_refsource_MISC
	https://github.com/ARMmbed/mbed-coap/pull/116	x_refsource_CONFIRM

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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-8V45-9MW2-FFMM

CVE-2020-12886 (GCVE-0-2020-12886)

Tags

Sightings

Nomenclature