CVE-2023-42363 (GCVE-0-2023-42363)

Vulnerability from cvelistv5 – Published: 2023-11-27 00:00 – Updated: 2024-08-02 19:16
VLAI
Summary
A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T19:16:50.975Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugs.busybox.net/show_bug.cgi?id=15865"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-11-27T21:53:07.527Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://bugs.busybox.net/show_bug.cgi?id=15865"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-42363",
    "datePublished": "2023-11-27T00:00:00.000Z",
    "dateReserved": "2023-09-08T00:00:00.000Z",
    "dateUpdated": "2024-08-02T19:16:50.975Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-42363",
      "date": "2026-07-21",
      "epss": "0.00428",
      "percentile": "0.34771"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T02:45:44.000Z",
      "cve": "CVE-2023-42363",
      "id": "msrc_CVE-2023-42363",
      "initial_release_date": "2023-11-01T07:00:00.000Z",
      "product_status:fixed": "5",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.",
      "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2023-42363.json",
      "version": "17"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-42363\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2023-11-27T22:15:07.940\",\"lastModified\":\"2026-06-17T06:23:46.477\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.\"},{\"lang\":\"es\",\"value\":\"Se descubri\u00f3 una vulnerabilidad de use-after-free en la funci\u00f3n xasprintf en xfuncs_printf.c:344 en BusyBox v.1.36.1.\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"n/a\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:busybox:busybox:1.36.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F729D66A-538E-421E-961F-8A484E6C6106\"}]}]}],\"references\":[{\"url\":\"https://bugs.busybox.net/show_bug.cgi?id=15865\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://bugs.busybox.net/show_bug.cgi?id=15865\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T15:00:56+00:00",
      "cve": "CVE-2023-42363",
      "id": "CVE-2023-42363",
      "initial_release_date": "2023-11-28T00:00:00+00:00",
      "product_status:known_affected": "3",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "busybox: use-after-free in awk",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-42363.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.