cnvd - cnvd-2018-00256

cnvd-2018-00256

Vulnerability from cnvd

Title: GNU C Library整数溢出漏洞（CNVD-2018-00256）

Description:

GNU C Library（又名glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。

GNU C Library 2.26版本中的‘malloc’函数存在整数溢出漏洞，该漏洞源于程序返回的内存块较小。目前尚无此漏洞的相关信息。

Severity: 中

Patch Name: GNU C Library整数溢出漏洞（CNVD-2018-00256）的补丁

Patch Description:

GNU C Library（又名glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。

GNU C Library 2.26版本中的‘malloc’函数存在整数溢出漏洞，该漏洞源于程序返回的内存块较小。目前尚无此漏洞的相关信息。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://sourceware.org/bugzilla/show_bug.cgi?id=22375

Reference: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=34697694e8a93b325b18f25f7dcded55d6baeaf6

Impacted products

Name
GNU C Library 2.26

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2017-17426"
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  "openTime": "2018-01-04",
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  "patchName": "GNU C Library\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2018-00256\uff09\u7684\u8865\u4e01",
  "products": {
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  "referenceLink": "https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=34697694e8a93b325b18f25f7dcded55d6baeaf6",
  "serverity": "\u4e2d",
  "submitTime": "2017-12-07",
  "title": "GNU C Library\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2018-00256\uff09"
}

CVE-2017-17426 (GCVE-0-2017-17426)

Vulnerability from cvelistv5

Published

2017-12-05 17:00

Modified

2024-09-16 16:32

Severity ?

CWE

Summary

The malloc function in the GNU C Library (aka glibc or libc6) 2.26 could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, potentially leading to a subsequent heap overflow. This occurs because the per-thread cache (aka tcache) feature enables a code path that lacks an integer overflow check.

References

▼	URL	Tags
	https://sourceware.org/bugzilla/show_bug.cgi?id=22375	x_refsource_CONFIRM
	https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=34697694e8a93b325b18f25f7dcded55d6baeaf6	x_refsource_CONFIRM

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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