cnvd - cnvd-2019-07026

cnvd-2019-07026

Vulnerability from cnvd

Title: elfutils 'read_long_names'函数拒绝服务漏洞

Description:

elfutils是一套用于读取、创建和修改ELF二进制文件的实用程序和库的集合。libelf是其中的一个用于解析ELF格式的二进制文件并与之交互的库。

elfutils 0.174版本中的libelf的elf_begin.c文件的'read_long_names'函数存在安全漏洞。远程攻击者可借助特制的elf输入利用该漏洞造成拒绝服务（内存不足异常）。

Severity: 中

Formal description:

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://sourceware.org/elfutils/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-7148

Impacted products

Name
Elfutils Elfutils 0.174

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-7148"
    }
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  "description": "elfutils\u662f\u4e00\u5957\u7528\u4e8e\u8bfb\u53d6\u3001\u521b\u5efa\u548c\u4fee\u6539ELF\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u5b9e\u7528\u7a0b\u5e8f\u548c\u5e93\u7684\u96c6\u5408\u3002libelf\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790ELF\u683c\u5f0f\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u5e76\u4e0e\u4e4b\u4ea4\u4e92\u7684\u5e93\u3002\n\nelfutils 0.174\u7248\u672c\u4e2d\u7684libelf\u7684elf_begin.c\u6587\u4ef6\u7684\u0027read_long_names\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684elf\u8f93\u5165\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u4e0d\u8db3\u5f02\u5e38\uff09\u3002",
  "discovererName": "wcventure",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://sourceware.org/elfutils/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-07026",
  "openTime": "2019-03-13",
  "products": {
    "product": "Elfutils Elfutils 0.174"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-7148",
  "serverity": "\u4e2d",
  "submitTime": "2019-01-29",
  "title": "elfutils \u0027read_long_names\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-7148 (GCVE-0-2019-7148)

Vulnerability from cvelistv5

Published

2019-01-29 00:00

Modified

2024-08-04 20:38

Severity ?

CWE

Summary

An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf in elfutils 0.174. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted elf input, which leads to an out-of-memory exception. NOTE: The maintainers believe this is not a real issue, but instead a "warning caused by ASAN because the allocation is big. By setting ASAN_OPTIONS=allocator_may_return_null=1 and running the reproducer, nothing happens."

References

▼	URL	Tags
	https://sourceware.org/bugzilla/show_bug.cgi?id=24085	x_refsource_MISC

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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