cnvd - cnvd-2021-28273

cnvd-2021-28273

Vulnerability from cnvd

Title: json-c整数溢出和越界写入漏洞

Description:

json-c是JSON的C语言实现。

json-c 0.14及更早版本存在整数溢出和越界写入漏洞。攻击者可通过大型JSON文件利用该漏洞导致整数溢出和越界写入。

Severity: 中

Patch Name: json-c整数溢出和越界写入漏洞的补丁

Patch Description:

json-c是JSON的C语言实现。

json-c 0.14及更早版本存在整数溢出和越界写入漏洞。攻击者可通过大型JSON文件利用该漏洞导致整数溢出和越界写入。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/json-c/json-c/pull/592/commits/d07b91014986900a3a75f306d302e13e005e9d67

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-12762

Impacted products

Name
JSON-C JSON-C <=0.14

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-12762"
    }
  },
  "description": "json-c\u662fJSON\u7684C\u8bed\u8a00\u5b9e\u73b0\u3002\n\njson-c 0.14\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u548c\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5927\u578bJSON\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u6574\u6570\u6ea2\u51fa\u548c\u8d8a\u754c\u5199\u5165\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/json-c/json-c/pull/592/commits/d07b91014986900a3a75f306d302e13e005e9d67",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-28273",
  "openTime": "2021-04-14",
  "patchDescription": "json-c\u662fJSON\u7684C\u8bed\u8a00\u5b9e\u73b0\u3002\r\n\r\njson-c 0.14\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u548c\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5927\u578bJSON\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u6574\u6570\u6ea2\u51fa\u548c\u8d8a\u754c\u5199\u5165\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": "json-c\u6574\u6570\u6ea2\u51fa\u548c\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "JSON-C JSON-C \u003c=0.14"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-12762",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-11",
  "title": "json-c\u6574\u6570\u6ea2\u51fa\u548c\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e"
}

CVE-2020-12762 (GCVE-0-2020-12762)

Vulnerability from cvelistv5

Published

2020-05-09 00:00

Modified

2025-05-30 19:47

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

Summary

json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbuf_memappend.

References

▼	URL	Tags
	https://github.com/json-c/json-c/pull/592
	https://github.com/rsyslog/libfastjson/issues/161
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/	vendor-advisory
	https://usn.ubuntu.com/4360-1/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html	mailing-list
	https://usn.ubuntu.com/4360-4/	vendor-advisory
	https://security.gentoo.org/glsa/202006-13	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html	mailing-list
	https://www.debian.org/security/2020/dsa-4741	vendor-advisory
	https://security.netapp.com/advisory/ntap-20210521-0001/
	https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
	https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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          },
          {
            "name": "[debian-lts-announce] 20200531 [SECURITY] [DLA 2228-1] json-c security update",
            "tags": [
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          },
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            "url": "https://security.netapp.com/advisory/ntap-20210521-0001/"
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            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf"
          },
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            "tags": [
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            "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html"
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      "problemTypes": [
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          "url": "https://github.com/rsyslog/libfastjson/issues/161"
        },
        {
          "name": "FEDORA-2020-63c6f4ab1d",
          "tags": [
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CQQRRGBQCAWNCCJ2HN3W5SSCZ4QGMXQI/"
        },
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          "name": "USN-4360-1",
          "tags": [
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          "url": "https://usn.ubuntu.com/4360-1/"
        },
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          "name": "FEDORA-2020-847ad856ab",
          "tags": [
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBR36IXYBHITAZFB5PFBJTED22WO5ONB/"
        },
        {
          "name": "FEDORA-2020-7eb7eac270",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W226TSCJBEOXDUFVKNWNH7ETG7AR6MCS/"
        },
        {
          "name": "[debian-lts-announce] 20200531 [SECURITY] [DLA 2228-1] json-c security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00032.html"
        },
        {
          "name": "[debian-lts-announce] 20200531 [SECURITY] [DLA 2228-2] json-c regression update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00034.html"
        },
        {
          "name": "USN-4360-4",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://usn.ubuntu.com/4360-4/"
        },
        {
          "name": "GLSA-202006-13",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202006-13"
        },
        {
          "name": "[debian-lts-announce] 20200730 [SECURITY] [DLA 2301-1] json-c security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00031.html"
        },
        {
          "name": "DSA-4741",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4741"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20210521-0001/"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf"
        },
        {
          "name": "[debian-lts-announce] 20230620 [SECURITY] [DLA 3461-1] libfastjson security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00023.html"
        }
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-12762",
    "datePublished": "2020-05-09T00:00:00.000Z",
    "dateReserved": "2020-05-09T00:00:00.000Z",
    "dateUpdated": "2025-05-30T19:47:52.321Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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