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CloudflareCVELIST:CVE-2023-6180

HistoryDec 05, 2023 - 3:02 p.m.

CVE-2023-6180 Resource exhaustion via memory leak in tokio-boring

2023-12-0515:02:40

CWE-400

CWE-404

cloudflare

www.cve.org

cve-2023-6180

tokio-boring

memory leak

resource exhaustion

dos

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

17.0%

JSON

The tokio-boring library in version 4.0.0 is affected by a memory leak issue that can lead to excessive resource consumption and potential DoS by resource exhaustion. The set_ex_data function used by the library did not deallocate memory used by pre-existing data in memory each time after completing a TLS connection causing the program to consume more resources with each new connection.

CNA Affected

[
  {
    "collectionURL": "https://github.com/cloudflare/boring/tree/master/tokio-boring",
    "defaultStatus": "unaffected",
    "modules": [
      "toki-boring"
    ],
    "packageName": "boring",
    "product": "tokio-boring",
    "vendor": "Cloudflare",
    "versions": [
      {
        "lessThanOrEqual": "4.1.0",
        "status": "affected",
        "version": "4.0.0",
        "versionType": "semver"
      }
    ]
  }
]

References

github.com/cloudflare/boring/security/advisories/GHSA-pjrj-h4fg-6gm4

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

17.0%

JSON

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