cnvd - cnvd-2018-03275

cnvd-2018-03275

Vulnerability from cnvd

Title: QEMU拒绝服务漏洞（CNVD-2018-03275）

Description:

QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

QEMU中的‘vga_draw_text’函数存在安全漏洞。本地攻击者可利用该漏洞造成拒绝服务（越边界读取和QEMU进程崩溃）。

Severity: 低

Patch Name: QEMU拒绝服务漏洞（CNVD-2018-03275）的补丁

Patch Description:

QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

QEMU中的‘vga_draw_text’函数存在安全漏洞。本地攻击者可利用该漏洞造成拒绝服务（越边界读取和QEMU进程崩溃）。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02131.html

Reference: http://www.securityfocus.com/bid/102518/

Impacted products

Name
Qemu QEMU

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "102518"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-5683"
    }
  },
  "description": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU\u4e2d\u7684\u2018vga_draw_text\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u8bfb\u53d6\u548cQEMU\u8fdb\u7a0b\u5d29\u6e83\uff09\u3002",
  "discovererName": "Jiang Xin of Huawei.",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02131.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-03275",
  "openTime": "2018-02-13",
  "patchDescription": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU\u4e2d\u7684\u2018vga_draw_text\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u8bfb\u53d6\u548cQEMU\u8fdb\u7a0b\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": "QEMU\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-03275\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Qemu QEMU"
  },
  "referenceLink": "http://www.securityfocus.com/bid/102518/",
  "serverity": "\u4f4e",
  "submitTime": "2018-01-22",
  "title": "QEMU\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-03275\uff09"
}

CVE-2018-5683 (GCVE-0-2018-5683)

Vulnerability from cvelistv5

Published

2018-01-23 18:00

Modified

2024-08-05 05:40

Severity ?

CWE

Summary

The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.

References

▼	URL	Tags
	https://access.redhat.com/errata/RHSA-2018:2162	vendor-advisory, x_refsource_REDHAT
	https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2018/dsa-4213	vendor-advisory, x_refsource_DEBIAN
	https://access.redhat.com/errata/RHSA-2018:0816	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2018:1104	vendor-advisory, x_refsource_REDHAT
	https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/3575-1/	vendor-advisory, x_refsource_UBUNTU
	http://www.securityfocus.com/bid/102518	vdb-entry, x_refsource_BID
	http://www.openwall.com/lists/oss-security/2018/01/15/2	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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