Vulnerability-Lookup

CNVD-2019-05080

Vulnerability from cnvd - Published: 2019-02-22

Title

QEMU 'hw/rdma/vmw/pvrdma_cmd.c'本地拒绝服务漏洞

Description

QEMU（又名Quick Emulator）是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hw/rdma/vmw/pvrdma_cmd.c文件存在安全漏洞，该漏洞源于当创建CQ/QP ring对象时，在出现错误的情况下‘create_cq/qp()’函数未能释放ring对象的内存。攻击者可利用该漏洞造成拒绝服务（内存泄露）。

Severity

低

Patch Name

QEMU 'hw/rdma/vmw/pvrdma_cmd.c'本地拒绝服务漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.qemu.org/

Reference

https://vigilance.fr/vulnerability/QEMU-memory-leak-via-pvrdma-QP-CQ-Creation-28050

Impacted products

Name
QEMU QEMU 0

Show details on source website

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{
  "bids": {
    "bid": {
      "bidNumber": "106298"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-20126"
    }
  },
  "description": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\u662f\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\u4e2d\u7684hw/rdma/vmw/pvrdma_cmd.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u521b\u5efaCQ/QP ring\u5bf9\u8c61\u65f6\uff0c\u5728\u51fa\u73b0\u9519\u8bef\u7684\u60c5\u51b5\u4e0b\u2018create_cq/qp()\u2019\u51fd\u6570\u672a\u80fd\u91ca\u653ering\u5bf9\u8c61\u7684\u5185\u5b58\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u6cc4\u9732\uff09\u3002",
  "discovererName": "Li Qiang",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-05080",
  "openTime": "2019-02-22",
  "patchDescription": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\u662f\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\u7684hw/rdma/vmw/pvrdma_cmd.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u521b\u5efaCQ/QP ring\u5bf9\u8c61\u65f6\uff0c\u5728\u51fa\u73b0\u9519\u8bef\u7684\u60c5\u51b5\u4e0b\u2018create_cq/qp()\u2019\u51fd\u6570\u672a\u80fd\u91ca\u653ering\u5bf9\u8c61\u7684\u5185\u5b58\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u6cc4\u9732\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 \u0027hw/rdma/vmw/pvrdma_cmd.c\u0027\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 0"
  },
  "referenceLink": "https://vigilance.fr/vulnerability/QEMU-memory-leak-via-pvrdma-QP-CQ-Creation-28050",
  "serverity": "\u4f4e",
  "submitTime": "2018-12-21",
  "title": "QEMU \u0027hw/rdma/vmw/pvrdma_cmd.c\u0027\u672c\u5730\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-20126 (GCVE-0-2018-20126)

Vulnerability from cvelistv5 – Published: 2018-12-20 21:00 – Updated: 2024-08-05 11:51

Summary

hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are mishandled.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
http://www.openwall.com/lists/oss-security/2018/12/19/4	mailing-listx_refsource_MLIST
https://lists.gnu.org/archive/html/qemu-devel/201…	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/106298	vdb-entryx_refsource_BID
https://usn.ubuntu.com/3923-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Date Public

2018-12-19 00:00

Show details on NVD website

JSON

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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.

Action not permitted

CNVD-2019-05080

CVE-2018-20126 (GCVE-0-2018-20126)

Tags

Sightings

Nomenclature

Related by attack behaviour