cnvd - cnvd-2017-34603

cnvd-2017-34603

Vulnerability from cnvd

Title: musl libc缓冲区溢出漏洞

Description:

musl libc是用于新一代基于Linux的设备的新的标准库。

1.1.17版之前的musl libc存在缓冲区溢出漏洞。该漏洞产生的原因是network/lookup_name.c中的dns_parse_callback未限制地址数，攻击者可通过在对AAAA查询的回复中发送A记录来提供意外的数字导致缓冲区溢出。

Severity: 中

Patch Name: musl libc缓冲区溢出漏洞的补丁

Patch Description:

musl libc是用于新一代基于Linux的设备的新的标准库。

1.1.17版之前的musl libc存在缓冲区溢出漏洞。该漏洞产生的原因是network/lookup_name.c中的dns_parse_callback未限制地址数，攻击者可通过在对AAAA查询的回复中发送A记录来提供意外的数字导致缓冲区溢出。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： http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395

Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-15650

Impacted products

Name
musl libc musl libc <1.1.17

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-15650"
    }
  },
  "description": "musl libc\u662f\u7528\u4e8e\u65b0\u4e00\u4ee3\u57fa\u4e8eLinux\u7684\u8bbe\u5907\u7684\u65b0\u7684\u6807\u51c6\u5e93\u3002\r\n\r\n1.1.17\u7248\u4e4b\u524d\u7684musl libc\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662fnetwork/lookup_name.c\u4e2d\u7684dns_parse_callback\u672a\u9650\u5236\u5730\u5740\u6570\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u5bf9AAAA\u67e5\u8be2\u7684\u56de\u590d\u4e2d\u53d1\u9001A\u8bb0\u5f55\u6765\u63d0\u4f9b\u610f\u5916\u7684\u6570\u5b57\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\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\nhttp://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-34603",
  "openTime": "2017-11-20",
  "patchDescription": "musl libc\u662f\u7528\u4e8e\u65b0\u4e00\u4ee3\u57fa\u4e8eLinux\u7684\u8bbe\u5907\u7684\u65b0\u7684\u6807\u51c6\u5e93\u3002\r\n\r\n1.1.17\u7248\u4e4b\u524d\u7684musl libc\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662fnetwork/lookup_name.c\u4e2d\u7684dns_parse_callback\u672a\u9650\u5236\u5730\u5740\u6570\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u5bf9AAAA\u67e5\u8be2\u7684\u56de\u590d\u4e2d\u53d1\u9001A\u8bb0\u5f55\u6765\u63d0\u4f9b\u610f\u5916\u7684\u6570\u5b57\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\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": "musl libc\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "musl libc musl libc \u003c1.1.17"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-15650",
  "serverity": "\u4e2d",
  "submitTime": "2017-10-20",
  "title": "musl libc\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2017-15650 (GCVE-0-2017-15650)

Vulnerability from cvelistv5

Published

2017-10-19 23:00

Modified

2024-08-05 19:57

Severity ?

CWE

Summary

musl libc before 1.1.17 has a buffer overflow via crafted DNS replies because dns_parse_callback in network/lookup_name.c does not restrict the number of addresses, and thus an attacker can provide an unexpected number by sending A records in a reply to an AAAA query.

References

▼	URL	Tags
	http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395	x_refsource_CONFIRM
	http://git.musl-libc.org/cgit/musl/tree/WHATSNEW	x_refsource_CONFIRM
	http://openwall.com/lists/oss-security/2017/10/19/5	x_refsource_CONFIRM

Impacted products

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

Show details on NVD website

JSON

To clipboard

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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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