cnvd - cnvd-2019-03428

cnvd-2019-03428

Vulnerability from cnvd

Title: GNU tar拒绝服务漏洞

Description:

GNU Tar是GNU计划开发的一套用于创建tar格式文件的工具。

GNU Tar 1.30及之前版本中存在安全漏洞，该漏洞源于程序未能正确地处理文件的收缩过程。本地攻击者可通过修改文件利用该漏洞造成拒绝服务（sparse.c文件的‘sparse_dump_region’函数无限读取循环）。

Severity: 低

Formal description:

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

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-20482

Impacted products

Name
Gnu Tar <=1.30

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "106354"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-20482"
    }
  },
  "description": "GNU Tar\u662fGNU\u8ba1\u5212\u5f00\u53d1\u7684\u4e00\u5957\u7528\u4e8e\u521b\u5efatar\u683c\u5f0f\u6587\u4ef6\u7684\u5de5\u5177\u3002\n\nGNU Tar 1.30\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5730\u5904\u7406\u6587\u4ef6\u7684\u6536\u7f29\u8fc7\u7a0b\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4fee\u6539\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08sparse.c\u6587\u4ef6\u7684\u2018sparse_dump_region\u2019\u51fd\u6570\u65e0\u9650\u8bfb\u53d6\u5faa\u73af\uff09\u3002",
  "discovererName": "Chris Siebenmann",
  "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://www.gnu.org/software/tar/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-03428",
  "openTime": "2019-01-30",
  "products": {
    "product": "Gnu Tar \u003c=1.30"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-20482",
  "serverity": "\u4f4e",
  "submitTime": "2018-12-27",
  "title": "GNU tar\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-20482 (GCVE-0-2018-20482)

Vulnerability from cvelistv5

Published

2018-12-26 18:00

Modified

2024-08-05 12:05

Severity ?

CWE

Summary

GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).

References

▼	URL	Tags
	https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug	x_refsource_MISC
	http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html	mailing-list, x_refsource_MLIST
	https://news.ycombinator.com/item?id=18745431	x_refsource_MISC
	http://www.securityfocus.com/bid/106354	vdb-entry, x_refsource_BID
	https://security.gentoo.org/glsa/201903-05	vendor-advisory, x_refsource_GENTOO
	http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html	x_refsource_MISC
	https://twitter.com/thatcks/status/1076166645708668928	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html	vendor-advisory, x_refsource_SUSE
	https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html	mailing-list, x_refsource_MLIST

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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