Vulnerability-Lookup

CNVD-2019-02660

Vulnerability from cnvd - Published: 2019-01-24

Title

xkbcommon无限循环漏洞

Description

xkbcommon是一个键盘键映射编译器和支持库。 xkbcommon0.8.1之前版本中的compose/parser.c文件存在无限循环漏洞，本地攻击者可借助特制的keymap文件利用该漏洞造成拒绝服务。

Severity

低

Patch Name

xkbcommon无限循环漏洞的补丁

Patch Description

xkbcommon是一个键盘键映射编译器和支持库。 xkbcommon0.8.1之前版本中的compose/parser.c文件存在无限循环漏洞，本地攻击者可借助特制的keymap文件利用该漏洞造成拒绝服务。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/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-15856

Impacted products

Name
xkbcommon xkbcommon <0.8.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-15856"
    }
  },
  "description": "xkbcommon\u662f\u4e00\u4e2a\u952e\u76d8\u952e\u6620\u5c04\u7f16\u8bd1\u5668\u548c\u652f\u6301\u5e93\u3002\n\nxkbcommon0.8.1\u4e4b\u524d\u7248\u672c\u4e2d\u7684compose/parser.c\u6587\u4ef6\u5b58\u5728\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684keymap\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "bluetech",
  "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/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-02660",
  "openTime": "2019-01-24",
  "patchDescription": "xkbcommon\u662f\u4e00\u4e2a\u952e\u76d8\u952e\u6620\u5c04\u7f16\u8bd1\u5668\u548c\u652f\u6301\u5e93\u3002\r\n\r\nxkbcommon0.8.1\u4e4b\u524d\u7248\u672c\u4e2d\u7684compose/parser.c\u6587\u4ef6\u5b58\u5728\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684keymap\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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": "xkbcommon\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "xkbcommon xkbcommon \u003c0.8.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-15856",
  "serverity": "\u4f4e",
  "submitTime": "2018-08-27",
  "title": "xkbcommon\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e"
}

CVE-2018-15856 (GCVE-0-2018-15856)

Vulnerability from cvelistv5 – Published: 2018-08-25 21:00 – Updated: 2024-08-05 10:10

Summary

An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://security.gentoo.org/glsa/201810-05	vendor-advisoryx_refsource_GENTOO
https://github.com/xkbcommon/libxkbcommon/commit/…	x_refsource_MISC
https://usn.ubuntu.com/3786-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3786-2/	vendor-advisoryx_refsource_UBUNTU
https://lists.freedesktop.org/archives/wayland-de…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:2079	vendor-advisoryx_refsource_REDHAT

Date Public

2018-08-25 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.