Vulnerability-Lookup

CNVD-2020-03949

Vulnerability from cnvd - Published: 2020-02-06

Title

UPX浮点异常漏洞

Description

UPX是一款可移植、可扩展的可执行压缩程序。 UPX 3.95版本中的p_lx_elf.cpp文件的‘PackLinuxElf：：elf_hash’函数存在安全漏洞。攻击者可利用该漏洞造成应用程序崩溃，导致拒绝服务。

Severity

中

Patch Name

UPX浮点异常漏洞的补丁

Patch Description

UPX是一款可移植、可扩展的可执行压缩程序。 UPX 3.95版本中的p_lx_elf.cpp文件的‘PackLinuxElf：：elf_hash’函数存在安全漏洞。攻击者可利用该漏洞造成应用程序崩溃，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

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/upx/upx

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20051

Impacted products

Name
UPX UPX 3.95

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20051",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-20051"
    }
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  "description": "UPX\u662f\u4e00\u6b3e\u53ef\u79fb\u690d\u3001\u53ef\u6269\u5c55\u7684\u53ef\u6267\u884c\u538b\u7f29\u7a0b\u5e8f\u3002\n\nUPX 3.95\u7248\u672c\u4e2d\u7684p_lx_elf.cpp\u6587\u4ef6\u7684\u2018PackLinuxElf\uff1a\uff1aelf_hash\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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/upx/upx",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03949",
  "openTime": "2020-02-06",
  "patchDescription": "UPX\u662f\u4e00\u6b3e\u53ef\u79fb\u690d\u3001\u53ef\u6269\u5c55\u7684\u53ef\u6267\u884c\u538b\u7f29\u7a0b\u5e8f\u3002\r\n\r\nUPX 3.95\u7248\u672c\u4e2d\u7684p_lx_elf.cpp\u6587\u4ef6\u7684\u2018PackLinuxElf\uff1a\uff1aelf_hash\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff0c\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": "UPX\u6d6e\u70b9\u5f02\u5e38\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "UPX UPX 3.95"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20051",
  "serverity": "\u4e2d",
  "submitTime": "2019-12-30",
  "title": "UPX\u6d6e\u70b9\u5f02\u5e38\u6f0f\u6d1e"
}

CVE-2019-20051 (GCVE-0-2019-20051)

Vulnerability from cvelistv5 – Published: 2019-12-27 21:59 – Updated: 2024-08-05 02:32

Summary

A floating-point exception was discovered in PackLinuxElf::elf_hash in p_lx_elf.cpp in UPX 3.95. The vulnerability causes an application crash, which leads to denial of service.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://github.com/upx/upx/issues/313	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/upx/upx/issues/313"
          },
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          },
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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.

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CNVD-2020-03949

CVE-2019-20051 (GCVE-0-2019-20051)

Tags

Sightings

Nomenclature

Related by attack behaviour