cnvd - cnvd-2021-44714

cnvd-2021-44714

Vulnerability from cnvd

Title: libslirp缓冲区过读漏洞（CNVD-2021-44714）

Description:

libslirp是一款用于在虚拟机管理程序中管理虚拟网络服务的通用TCP-IP模拟器。

libslirp 4.3.1及更早版本中的ncsi.c存在缓冲区过读漏洞，该漏洞源于ncsi.c在已超过数据包总长度的情况下仍尝试读取一定量的header数据。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: libslirp缓冲区过读漏洞（CNVD-2021-44714）的补丁

Patch Description:

libslirp是一款用于在虚拟机管理程序中管理虚拟网络服务的通用TCP-IP模拟器。

libslirp 4.3.1及更早版本中的ncsi.c存在缓冲区过读漏洞，该漏洞源于ncsi.c在已超过数据包总长度的情况下仍尝试读取一定量的header数据。目前没有详细的漏洞细节提供。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://lists.freedesktop.org/archives/slirp/2020-November/000115.html

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-29129

Impacted products

Name
libslirp libslirp <=4.3.1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-29129",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-29129"
    }
  },
  "description": "libslirp\u662f\u4e00\u6b3e\u7528\u4e8e\u5728\u865a\u62df\u673a\u7ba1\u7406\u7a0b\u5e8f\u4e2d\u7ba1\u7406\u865a\u62df\u7f51\u7edc\u670d\u52a1\u7684\u901a\u7528TCP-IP\u6a21\u62df\u5668\u3002\n\nlibslirp 4.3.1\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684ncsi.c\u5b58\u5728\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8encsi.c\u5728\u5df2\u8d85\u8fc7\u6570\u636e\u5305\u603b\u957f\u5ea6\u7684\u60c5\u51b5\u4e0b\u4ecd\u5c1d\u8bd5\u8bfb\u53d6\u4e00\u5b9a\u91cf\u7684header\u6570\u636e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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://lists.freedesktop.org/archives/slirp/2020-November/000115.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44714",
  "openTime": "2021-06-24",
  "patchDescription": "libslirp\u662f\u4e00\u6b3e\u7528\u4e8e\u5728\u865a\u62df\u673a\u7ba1\u7406\u7a0b\u5e8f\u4e2d\u7ba1\u7406\u865a\u62df\u7f51\u7edc\u670d\u52a1\u7684\u901a\u7528TCP-IP\u6a21\u62df\u5668\u3002\r\n\r\nlibslirp 4.3.1\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684ncsi.c\u5b58\u5728\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8encsi.c\u5728\u5df2\u8d85\u8fc7\u6570\u636e\u5305\u603b\u957f\u5ea6\u7684\u60c5\u51b5\u4e0b\u4ecd\u5c1d\u8bd5\u8bfb\u53d6\u4e00\u5b9a\u91cf\u7684header\u6570\u636e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "libslirp\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\uff08CNVD-2021-44714\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "libslirp libslirp \u003c=4.3.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-29129",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-27",
  "title": "libslirp\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\uff08CNVD-2021-44714\uff09"
}

CVE-2020-29129 (GCVE-0-2020-29129)

Vulnerability from cvelistv5

Published

2020-11-26 19:03

Modified

2024-08-04 16:48

Severity ?

CWE

Summary

ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.

References

▼	URL	Tags
	https://lists.freedesktop.org/archives/slirp/2020-November/000115.html	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/11/27/1	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPCOHDEONMHH6QPJZKRLLCNRGRYODG7X/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45S5IHSWYITJKMRT23HCHJQDI674AMTQ/	vendor-advisory, x_refsource_FEDORA
	https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html	mailing-list, x_refsource_MLIST

Impacted products

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

Show details on NVD website

JSON

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{
  "containers": {
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      {
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          "dateUpdated": "2024-08-04T16:48:01.536Z",
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            ],
            "url": "https://lists.freedesktop.org/archives/slirp/2020-November/000115.html"
          },
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            "name": "[oss-security] 20201127 CVE-2020-29129 CVE-2020-29130 QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets",
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              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/11/27/1"
          },
          {
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          },
          {
            "name": "FEDORA-2020-331e1318dd",
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              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45S5IHSWYITJKMRT23HCHJQDI674AMTQ/"
          },
          {
            "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
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            "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
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        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
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      "providerMetadata": {
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPCOHDEONMHH6QPJZKRLLCNRGRYODG7X/"
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        },
        {
          "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
        }
      ],
      "x_legacyV4Record": {
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              "url": "https://lists.freedesktop.org/archives/slirp/2020-November/000115.html"
            },
            {
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              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/11/27/1"
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            },
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            },
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              "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
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    "dateReserved": "2020-11-26T00:00:00",
    "dateUpdated": "2024-08-04T16:48:01.536Z",
    "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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