Vulnerability-Lookup

CNVD-2020-03024

Vulnerability from cnvd - Published: 2020-01-21

Title

libbsd缓冲区溢出漏洞

Description

libbsd是一个提供了常见于BSD系统的功能的库。 libbsd 0.10.0之前版本中的nlist.c文件存在缓冲区溢出漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

Severity

中

Patch Name

libbsd缓冲区溢出漏洞的补丁

Patch Description

libbsd是一个提供了常见于BSD系统的功能的库。 libbsd 0.10.0之前版本中的nlist.c文件存在缓冲区溢出漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。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://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20367

Impacted products

Name
Freedesktop libbsd <0.10.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20367"
    }
  },
  "description": "libbsd\u662f\u4e00\u4e2a\u63d0\u4f9b\u4e86\u5e38\u89c1\u4e8eBSD\u7cfb\u7edf\u7684\u529f\u80fd\u7684\u5e93\u3002 \n\nlibbsd 0.10.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684nlist.c\u6587\u4ef6\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\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://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03024",
  "openTime": "2020-01-21",
  "patchDescription": "libbsd\u662f\u4e00\u4e2a\u63d0\u4f9b\u4e86\u5e38\u89c1\u4e8eBSD\u7cfb\u7edf\u7684\u529f\u80fd\u7684\u5e93\u3002 \r\n\r\nlibbsd 0.10.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684nlist.c\u6587\u4ef6\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\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": "libbsd\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Freedesktop libbsd \u003c0.10.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20367",
  "serverity": "\u4e2d",
  "submitTime": "2020-01-10",
  "title": "libbsd\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2019-20367 (GCVE-0-2019-20367)

Vulnerability from cvelistv5 – Published: 2020-01-08 16:50 – Updated: 2024-08-05 02:39

Summary

nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab).

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://lists.freedesktop.org/archives/libbsd/201…	x_refsource_MISC
https://gitlab.freedesktop.org/libbsd/libbsd/comm…	x_refsource_MISC
https://usn.ubuntu.com/4243-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/ra781e51cf1e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r0e913668380…	mailing-listx_refsource_MLIST

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JSON

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            "url": "https://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b"
          },
          {
            "name": "USN-4243-1",
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              "x_refsource_UBUNTU",
              "x_transferred"
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            "url": "https://usn.ubuntu.com/4243-1/"
          },
          {
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          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00043.html"
        },
        {
          "name": "[debian-lts-announce] 20210218 [SECURITY] [DLA 2566-1] libbsd security update",
          "tags": [
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            "x_refsource_MLIST"
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          "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00027.html"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2020-03024

CVE-2019-20367 (GCVE-0-2019-20367)

Tags

Sightings

Nomenclature

Related by attack behaviour