Vulnerability-Lookup

CNVD-2019-05082

Vulnerability from cnvd - Published: 2019-02-22

Title

QEMU 'i2c_ddc()'函数越界读取漏洞

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 2.10及之前版本和3.1.0及之前版本中的hw/i2c/i2c-ddc.c文件的'i2c_ddc()'函数存在越界读取漏洞。本地攻击者可利用该漏洞读取栈内存。

Severity

低

Patch Name

QEMU 'i2c_ddc()'函数越界读取漏洞的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/qemu/qemu/commit/b05b267840515730dbf6753495d5b7bd8b04ad1c

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-3812

Impacted products

Name
QEMU QEMU >=2.10，<=3.1.0

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "107059"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-3812"
    }
  },
  "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 2.10\u53ca\u4e4b\u524d\u7248\u672c\u548c3.1.0\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684hw/i2c/i2c-ddc.c\u6587\u4ef6\u7684\u0027i2c_ddc()\u0027\u51fd\u6570\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u6808\u5185\u5b58\u3002",
  "discovererName": "Michael Hanselmann",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/qemu/qemu/commit/b05b267840515730dbf6753495d5b7bd8b04ad1c",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-05082",
  "openTime": "2019-02-22",
  "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 2.10\u53ca\u4e4b\u524d\u7248\u672c\u548c3.1.0\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684hw/i2c/i2c-ddc.c\u6587\u4ef6\u7684\u0027i2c_ddc()\u0027\u51fd\u6570\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u6808\u5185\u5b58\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 \u0027i2c_ddc()\u0027\u51fd\u6570\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU \u003e=2.10\uff0c\u003c=3.1.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-3812",
  "serverity": "\u4f4e",
  "submitTime": "2019-02-20",
  "title": "QEMU \u0027i2c_ddc()\u0027\u51fd\u6570\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e"
}

CVE-2019-3812 (GCVE-0-2019-3812)

Vulnerability from cvelistv5 – Published: 2019-02-19 14:00 – Updated: 2024-08-04 19:19

Summary

QEMU, through version 2.10 and through version 3.1.0, is vulnerable to an out-of-bounds read of up to 128 bytes in the hw/i2c/i2c-ddc.c:i2c_ddc() function. A local attacker with permission to execute i2c commands could exploit this to read stack memory of the qemu process on the host.

Severity

4.4 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-119

Assigner

redhat redhat root

References

9 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/107059	vdb-entryx_refsource_BID
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/3923-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://www.debian.org/security/2019/dsa-4454	vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/May/76	mailing-listx_refsource_BUGTRAQ

Impacted products

1 product

Vendor	Product	Version
The QEMU Project	qemu	Affected: through version 2.10 and through to 3.1.0

Date Public

2019-02-19 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.