Vulnerability-Lookup

CNVD-2020-03251

Vulnerability from cnvd - Published: 2020-02-03

Title

libsolv堆缓冲区溢出漏洞

Description

Libsolv是一个免费的包管理库。 libsolv 0.7.6之前版本中的repodata.c中的repodata_schema2id存在堆缓冲区溢出漏洞。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

libsolv堆缓冲区溢出漏洞的补丁

Patch Description

Libsolv是一个免费的包管理库。 libsolv 0.7.6之前版本中的repodata.c中的repodata_schema2id存在堆缓冲区溢出漏洞。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://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20387

Impacted products

Name
openSUSE Libsolv <0.7.6

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20387",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-20387"
    }
  },
  "description": "Libsolv\u662f\u4e00\u4e2a\u514d\u8d39\u7684\u5305\u7ba1\u7406\u5e93\u3002\n\nlibsolv 0.7.6\u4e4b\u524d\u7248\u672c\u4e2d\u7684repodata.c\u4e2d\u7684repodata_schema2id\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\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://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03251",
  "openTime": "2020-02-03",
  "patchDescription": "Libsolv\u662f\u4e00\u4e2a\u514d\u8d39\u7684\u5305\u7ba1\u7406\u5e93\u3002\r\n\r\nlibsolv 0.7.6\u4e4b\u524d\u7248\u672c\u4e2d\u7684repodata.c\u4e2d\u7684repodata_schema2id\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\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": "libsolv\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "openSUSE Libsolv \u003c0.7.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20387",
  "serverity": "\u9ad8",
  "submitTime": "2020-01-22",
  "title": "libsolv\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2019-20387 (GCVE-0-2019-20387)

Vulnerability from cvelistv5 – Published: 2020-01-21 22:54 – Updated: 2024-08-05 02:39

Summary

repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the length of the input schema.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://github.com/openSUSE/libsolv/commit/fdb9c9…	x_refsource_MISC
https://github.com/openSUSE/libsolv/compare/0.7.5…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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            ],
            "url": "https://github.com/openSUSE/libsolv/commit/fdb9c9c03508990e4583046b590c30d958f272da"
          },
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            ],
            "url": "https://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6"
          },
          {
            "name": "[debian-lts-announce] 20200130 [SECURITY] [DLA 2088-1] libsolv security update",
            "tags": [
              "mailing-list",
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          "url": "https://github.com/openSUSE/libsolv/compare/0.7.5...0.7.6"
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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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.