cnvd - cnvd-2020-36746

cnvd-2020-36746

Vulnerability from cnvd

Title: QEMU拒绝服务漏洞（CNVD-2020-36746）

Description:

QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）软件开发者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 4.2.0版本中的 hw/display/ati.c文件的ati-vga存在安全漏洞。攻击者可借助特制mm_index值利用该漏洞导致无限递归。

Severity: 中

Patch Name: QEMU拒绝服务漏洞的补丁

Patch Description:

QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）软件开发者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 4.2.0版本中的 hw/display/ati.c文件的ati-vga存在安全漏洞。攻击者可借助特制mm_index值利用该漏洞导致无限递归。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，详情请关注厂商主页： https://www.qemu.org/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-13800

Impacted products

Name
QEMU QEMU 4.2.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-13800"
    }
  },
  "description": "QEMU\uff08Quick Emulator\uff09\u662f\u6cd5\u56fd\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u8f6f\u4ef6\u5f00\u53d1\u8005\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\n\nQEMU 4.2.0\u7248\u672c\u4e2d\u7684 hw/display/ati.c\u6587\u4ef6\u7684ati-vga\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236mm_index\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u65e0\u9650\u9012\u5f52\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-36746",
  "openTime": "2020-07-07",
  "patchDescription": "QEMU\uff08Quick Emulator\uff09\u662f\u6cd5\u56fd\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u8f6f\u4ef6\u5f00\u53d1\u8005\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 4.2.0\u7248\u672c\u4e2d\u7684 hw/display/ati.c\u6587\u4ef6\u7684ati-vga\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236mm_index\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u65e0\u9650\u9012\u5f52\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\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 4.2.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-13800",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-05",
  "title": "QEMU\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-36746\uff09"
}

CVE-2020-13800 (GCVE-0-2020-13800)

Vulnerability from cvelistv5

Published

2020-06-04 15:23

Modified

2024-08-04 12:25

Severity ?

CWE

Summary

ati-vga in hw/display/ati.c in QEMU 4.2.0 allows guest OS users to trigger infinite recursion via a crafted mm_index value during an ati_mm_read or ati_mm_write call.

References

▼	URL	Tags
	https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00825.html	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2020/06/04/2	x_refsource_CONFIRM
	https://security.netapp.com/advisory/ntap-20200717-0001/	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html	vendor-advisory, x_refsource_SUSE
	https://usn.ubuntu.com/4467-1/	vendor-advisory, x_refsource_UBUNTU
	https://cve.openeuler.org/cve#/CVEInfo/CVE-2020-13800	x_refsource_MISC
	https://security.gentoo.org/glsa/202011-09	vendor-advisory, x_refsource_GENTOO

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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