cnvd - cnvd-2021-24268

cnvd-2021-24268

Vulnerability from cnvd

Title: UPX拒绝服务漏洞（CNVD-2021-24268）

Description:

UPX是一款开源可执行文件打包程序，支持来自不同操作系统的多种文件格式。

UPX 3.96版本中的p_lx_elf.cpp中的canPack存在拒绝服务漏洞。攻击者可通过特制ELF利用该漏洞导致应用程序崩溃。

Severity: 高

Patch Name: UPX拒绝服务漏洞（CNVD-2021-24268）的补丁

Patch Description:

UPX是一款开源可执行文件打包程序，支持来自不同操作系统的多种文件格式。

UPX 3.96版本中的p_lx_elf.cpp中的canPack存在拒绝服务漏洞。攻击者可通过特制ELF利用该漏洞导致应用程序崩溃。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/commit/3781df9da23840e596d5e9e8493f22666802fe6c

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-20285

Impacted products

Name
UPX UPX 3.96

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20285",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20285"
    }
  },
  "description": "UPX\u662f\u4e00\u6b3e\u5f00\u6e90\u53ef\u6267\u884c\u6587\u4ef6\u6253\u5305\u7a0b\u5e8f\uff0c\u652f\u6301\u6765\u81ea\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u591a\u79cd\u6587\u4ef6\u683c\u5f0f\u3002\n\nUPX 3.96\u7248\u672c\u4e2d\u7684p_lx_elf.cpp\u4e2d\u7684canPack\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236ELF\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1ahttps://github.com/upx/upx/commit/3781df9da23840e596d5e9e8493f22666802fe6c",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-24268",
  "openTime": "2021-04-01",
  "patchDescription": "UPX\u662f\u4e00\u6b3e\u5f00\u6e90\u53ef\u6267\u884c\u6587\u4ef6\u6253\u5305\u7a0b\u5e8f\uff0c\u652f\u6301\u6765\u81ea\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u591a\u79cd\u6587\u4ef6\u683c\u5f0f\u3002\r\n\r\nUPX 3.96\u7248\u672c\u4e2d\u7684p_lx_elf.cpp\u4e2d\u7684canPack\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236ELF\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-24268\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "UPX UPX 3.96"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-20285",
  "serverity": "\u9ad8",
  "submitTime": "2021-03-29",
  "title": "UPX\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-24268\uff09"
}

CVE-2021-20285 (GCVE-0-2021-20285)

Vulnerability from cvelistv5

Published

2021-03-26 16:35

Modified

2024-08-03 17:37

Severity ?

CWE

CWE-119

Summary

A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.

References

▼	URL	Tags
	https://github.com/upx/upx/issues/421	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=1937787	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	upx	Version: UPX 3.96

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:37:22.715Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/upx/upx/issues/421"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1937787"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "upx",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "UPX 3.96"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "CWE-119",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-26T16:35:14",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/upx/upx/issues/421"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1937787"
        }
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  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-20285",
    "datePublished": "2021-03-26T16:35:14",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:37:22.715Z",
    "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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