cnvd - cnvd-2017-06057

cnvd-2017-06057

Vulnerability from cnvd

Title: libcroco 'cr_tknzr_parse_rgb'函数拒绝服务漏洞

Description:

libcroco是一个CSS2解析库。

libcroco 0.6.11版本和0.6.12版本中的cr-tknzr.c文件的'cr_tknzr_parse_rgb'函数存在安全漏洞。远程攻击者可借助特制的CSS文件利用该漏洞造成拒绝服务（应用程序崩溃）。

Severity: 中

Patch Name: libcroco 'cr_tknzr_parse_rgb'函数拒绝服务漏洞的补丁

Patch Description:

libcroco是一个CSS2解析库。

libcroco 0.6.11版本和0.6.12版本中的cr-tknzr.c文件的'cr_tknzr_parse_rgb'函数存在安全漏洞。远程攻击者可借助特制的CSS文件利用该漏洞造成拒绝服务（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/GNOME/libcroco

Reference: https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/ https://nvd.nist.gov/vuln/detail/CVE-2017-7961

Impacted products

Name
['GNOME libcroco 0.6.11', 'GNOME libcroco 0.6.12']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7961"
    }
  },
  "description": "libcroco\u662f\u4e00\u4e2aCSS2\u89e3\u6790\u5e93\u3002\r\n\r\nlibcroco 0.6.11\u7248\u672c\u548c0.6.12\u7248\u672c\u4e2d\u7684cr-tknzr.c\u6587\u4ef6\u7684\u0027cr_tknzr_parse_rgb\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684CSS\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknown",
  "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/GNOME/libcroco",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-06057",
  "openTime": "2017-05-07",
  "patchDescription": "libcroco\u662f\u4e00\u4e2aCSS2\u89e3\u6790\u5e93\u3002\r\n\r\nlibcroco 0.6.11\u7248\u672c\u548c0.6.12\u7248\u672c\u4e2d\u7684cr-tknzr.c\u6587\u4ef6\u7684\u0027cr_tknzr_parse_rgb\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684CSS\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\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": "libcroco \u0027cr_tknzr_parse_rgb\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "GNOME libcroco 0.6.11",
      "GNOME libcroco  0.6.12"
    ]
  },
  "referenceLink": "https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7961",
  "serverity": "\u4e2d",
  "submitTime": "2017-04-21",
  "title": "libcroco \u0027cr_tknzr_parse_rgb\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-7961 (GCVE-0-2017-7961)

Vulnerability from cvelistv5

Published

2017-04-19 15:00

Modified

2024-08-05 16:19

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

Summary

The cr_tknzr_parse_rgb function in cr-tknzr.c in libcroco 0.6.11 and 0.6.12 has an "outside the range of representable values of type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted CSS file. NOTE: third-party analysis reports "This is not a security issue in my view. The conversion surely is truncating the double into a long value, but there is no impact as the value is one of the RGB components.

References

▼	URL	Tags
	https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7	x_refsource_MISC
	https://security.gentoo.org/glsa/201707-13	vendor-advisory, x_refsource_GENTOO
	http://openwall.com/lists/oss-security/2017/04/24/2	x_refsource_MISC
	https://bugzilla.suse.com/show_bug.cgi?id=1034482	x_refsource_MISC
	https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00043.html	vendor-advisory, x_refsource_SUSE

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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