Vulnerability-Lookup

CNVD-2021-29832

Vulnerability from cnvd - Published: 2021-04-21

Title

ezXML越界读取漏洞

Description

ezXML是一个用于解析XML文档的C库。 ezXML 0.8.6版本中的libezxml.a存在越界读取漏洞。该漏洞源于ezxml_parse_str()函数在解析特制XML文件时执行的内存处理错误。攻击者可利用该漏洞导致越界读取。

Severity

中

Patch Name

ezXML越界读取漏洞的补丁

Patch Description

ezXML是一个用于解析XML文档的C库。 ezXML 0.8.6版本中的libezxml.a存在越界读取漏洞。该漏洞源于ezxml_parse_str()函数在解析特制XML文件时执行的内存处理错误。攻击者可利用该漏洞导致越界读取。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://sourceforge.net/p/ezxml/bugs/27/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-31348

Impacted products

Name
ezXML ezXML 0.8.6

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-31348",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-31348"
    }
  },
  "description": "ezXML\u662f\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790XML\u6587\u6863\u7684C\u5e93\u3002\n\nezXML 0.8.6\u7248\u672c\u4e2d\u7684libezxml.a\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eezxml_parse_str()\u51fd\u6570\u5728\u89e3\u6790\u7279\u5236XML\u6587\u4ef6\u65f6\u6267\u884c\u7684\u5185\u5b58\u5904\u7406\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8d8a\u754c\u8bfb\u53d6\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://sourceforge.net/p/ezxml/bugs/27/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-29832",
  "openTime": "2021-04-21",
  "patchDescription": "ezXML\u662f\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790XML\u6587\u6863\u7684C\u5e93\u3002\r\n\r\nezXML 0.8.6\u7248\u672c\u4e2d\u7684libezxml.a\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eezxml_parse_str()\u51fd\u6570\u5728\u89e3\u6790\u7279\u5236XML\u6587\u4ef6\u65f6\u6267\u884c\u7684\u5185\u5b58\u5904\u7406\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8d8a\u754c\u8bfb\u53d6\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "ezXML\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ezXML ezXML 0.8.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-31348",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-19",
  "title": "ezXML\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e"
}

CVE-2021-31348 (GCVE-0-2021-31348)

Vulnerability from cvelistv5 – Published: 2021-04-16 17:41 – Updated: 2024-08-03 22:55

Summary

An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_parse_str() performs incorrect memory handling while parsing crafted XML files (out-of-bounds read after a certain strcspn failure).

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://sourceforge.net/p/ezxml/bugs/27/	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-03T22:55:53.570Z",
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://sourceforge.net/p/ezxml/bugs/27/"
          },
          {
            "name": "[debian-lts-announce] 20210708 [SECURITY] [DLA 2705-1] scilab security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00005.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "vendor": "n/a",
          "versions": [
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        }
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      "problemTypes": [
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-08T18:06:13.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://sourceforge.net/p/ezxml/bugs/27/"
        },
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          "name": "[debian-lts-announce] 20210708 [SECURITY] [DLA 2705-1] scilab security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00005.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-31348",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                      "version": {
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                      }
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                "vendor_name": "n/a"
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        },
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        "problemtype": {
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            },
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  "cveMetadata": {
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    "datePublished": "2021-04-16T17:41:08.000Z",
    "dateReserved": "2021-04-15T00:00:00.000Z",
    "dateUpdated": "2024-08-03T22:55:53.570Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

CNVD-2021-29832

CVE-2021-31348 (GCVE-0-2021-31348)

Tags

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