github - ghsa-6rpx-83hc-92h9

ghsa-6rpx-83hc-92h9

Vulnerability from github

Published

2022-05-24 16:46

Modified

2022-05-24 16:46

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size. An attacker sends a crafted hello client packet over the network to a TLSv1.3 wolfSSL server. The length fields of the packet: record length, client hello length, total extensions length, PSK extension length, total identity length, and identity length contain their maximum value which is 2^16. The identity data field of the PSK extension of the packet contains the attack data, to be stored in the undefined memory (RAM) of the server. The size of the data is about 65 kB. Possibly the attacker can perform a remote code execution attack.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-11873"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-05-23T13:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size. An attacker sends a crafted hello client packet over the network to a TLSv1.3 wolfSSL server. The length fields of the packet: record length, client hello length, total extensions length, PSK extension length, total identity length, and identity length contain their maximum value which is 2^16. The identity data field of the PSK extension of the packet contains the attack data, to be stored in the undefined memory (RAM) of the server. The size of the data is about 65 kB. Possibly the attacker can perform a remote code execution attack.",
  "id": "GHSA-6rpx-83hc-92h9",
  "modified": "2022-05-24T16:46:25Z",
  "published": "2022-05-24T16:46:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11873"
    },
    {
      "type": "WEB",
      "url": "https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842"
    },
    {
      "type": "WEB",
      "url": "https://www.telekom.com/resource/blob/572524/1c89c1cbaccdf792153063b3a10af10e/dl-190515-remote-buffer-overflow-vulnerability-wolfssl-library-data.pdf"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/108466"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2019-11873

Vulnerability from cvelistv5

Published

2019-05-23 12:54

Modified

2024-08-04 23:03

Severity ?

Summary

References

▼	URL	Tags
	https://www.telekom.com/en/corporate-responsibility/data-protection-data-security/security/details/advisories-504842	x_refsource_MISC
	https://www.telekom.com/resource/blob/572524/1c89c1cbaccdf792153063b3a10af10e/dl-190515-remote-buffer-overflow-vulnerability-wolfssl-library-data.pdf	x_refsource_MISC
	http://www.securityfocus.com/bid/108466	vdb-entry, x_refsource_BID

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

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          },
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            "url": "https://www.telekom.com/resource/blob/572524/1c89c1cbaccdf792153063b3a10af10e/dl-190515-remote-buffer-overflow-vulnerability-wolfssl-library-data.pdf"
          },
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            "url": "http://www.securityfocus.com/bid/108466"
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        ],
        "title": "CVE Program Container"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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