cnvd - cnvd-2018-07041

cnvd-2018-07041

Vulnerability from cnvd

Title: libgit2双重释放漏洞

Description:

libgit2是一个可移植、纯C语言实现的Git核心开发包，你可以使用它来编写自定义的Git应用。

libgit2 0.26.2之前的版本存在双重释放漏洞。该漏洞产生的原因是index.c:read_entry()函数未能正确的错误代码返回。攻击者可通过特制存储库索引文件利用该漏洞导致拒绝服务。

Severity: 中

Patch Name: libgit2双重释放漏洞的补丁

Patch Description:

libgit2是一个可移植、纯C语言实现的Git核心开发包，你可以使用它来编写自定义的Git应用。

libgit2 0.26.2之前的版本存在双重释放漏洞。该漏洞产生的原因是index.c:read_entry()函数未能正确的错误代码返回。攻击者可通过特制存储库索引文件利用该漏洞导致拒绝服务。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:

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-8099

Impacted products

Name
libgit2 libgit2 <v0.26.2

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8099"
    }
  },
  "description": "libgit2\u662f\u4e00\u4e2a\u53ef\u79fb\u690d\u3001\u7eafC\u8bed\u8a00\u5b9e\u73b0\u7684Git\u6838\u5fc3\u5f00\u53d1\u5305\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u7f16\u5199\u81ea\u5b9a\u4e49\u7684Git\u5e94\u7528\u3002\r\n\r\nlibgit2 0.26.2\u4e4b\u524d\u7684\u7248\u672c\u5b58\u5728\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662findex.c:read_entry()\u51fd\u6570\u672a\u80fd\u6b63\u786e\u7684\u9519\u8bef\u4ee3\u7801\u8fd4\u56de\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u5b58\u50a8\u5e93\u7d22\u5f15\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "unknown",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-07041",
  "openTime": "2018-04-04",
  "patchDescription": "libgit2\u662f\u4e00\u4e2a\u53ef\u79fb\u690d\u3001\u7eafC\u8bed\u8a00\u5b9e\u73b0\u7684Git\u6838\u5fc3\u5f00\u53d1\u5305\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u7f16\u5199\u81ea\u5b9a\u4e49\u7684Git\u5e94\u7528\u3002\r\n\r\nlibgit2 0.26.2\u4e4b\u524d\u7684\u7248\u672c\u5b58\u5728\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662findex.c:read_entry()\u51fd\u6570\u672a\u80fd\u6b63\u786e\u7684\u9519\u8bef\u4ee3\u7801\u8fd4\u56de\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u5b58\u50a8\u5e93\u7d22\u5f15\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "libgit2\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libgit2 libgit2 \u003cv0.26.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-8099",
  "serverity": "\u4e2d",
  "submitTime": "2018-03-14",
  "title": "libgit2\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e"
}

CVE-2018-8099 (GCVE-0-2018-8099)

Vulnerability from cvelistv5

Published

2018-03-14 00:00

Modified

2024-08-05 06:46

Severity ?

CWE

Summary

Incorrect returning of an error code in the index.c:read_entry() function leads to a double free in libgit2 before v0.26.2, which allows an attacker to cause a denial of service via a crafted repository index file.

References

▼	URL	Tags
	https://libgit2.github.com/security/	x_refsource_CONFIRM
	https://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html	mailing-list, x_refsource_MLIST

Impacted products

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

Show details on NVD website

JSON

To clipboard

{
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            ],
            "url": "https://libgit2.github.com/security/"
          },
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe"
          },
          {
            "name": "[debian-lts-announce] 20220321 [SECURITY] [DLA 2936-1] libgit2 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2022-03-21T02:06:16",
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        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
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          "url": "https://libgit2.github.com/security/"
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          "url": "https://github.com/libgit2/libgit2/commit/58a6fe94cb851f71214dbefac3f9bffee437d6fe"
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          "tags": [
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          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html"
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      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-8099",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
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                            "version_value": "n/a"
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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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