Vulnerability-Lookup

CNVD-2021-24034

Vulnerability from cnvd - Published: 2021-03-31

Title

Open vSwitch缓冲区过读漏洞

Description

Open vSwitch (OvS)是分布式虚拟多层交换机的开源实现。 Open vSwitch (OvS) 2.7.x (<=2.7.6)中的lib/ofp-actions.c中的decode_bundle函数在BUNDLE操作解码期间存在缓冲区过读漏洞。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Open vSwitch缓冲区过读漏洞的补丁

Patch Description

Open vSwitch (OvS)是分布式虚拟多层交换机的开源实现。 Open vSwitch (OvS) 2.7.x (<=2.7.6)中的lib/ofp-actions.c中的decode_bundle函数在BUNDLE操作解码期间存在缓冲区过读漏洞。目前没有详细的漏洞细节提供。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/openvswitch/ovs/commit/9237a63c47bd314b807cda0bd2216264e82edbe8

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-17206

Impacted products

Name
OpenvSwitch Open vSwitch 2.7.x (<=2.7.6)

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-17206"
    }
  },
  "description": "Open vSwitch (OvS)\u662f\u5206\u5e03\u5f0f\u865a\u62df\u591a\u5c42\u4ea4\u6362\u673a\u7684\u5f00\u6e90\u5b9e\u73b0\u3002\n\nOpen vSwitch (OvS) 2.7.x (\u003c=2.7.6)\u4e2d\u7684lib/ofp-actions.c\u4e2d\u7684decode_bundle\u51fd\u6570\u5728BUNDLE\u64cd\u4f5c\u89e3\u7801\u671f\u95f4\u5b58\u5728\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "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/openvswitch/ovs/commit/9237a63c47bd314b807cda0bd2216264e82edbe8",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-24034",
  "openTime": "2021-03-31",
  "patchDescription": "Open vSwitch (OvS)\u662f\u5206\u5e03\u5f0f\u865a\u62df\u591a\u5c42\u4ea4\u6362\u673a\u7684\u5f00\u6e90\u5b9e\u73b0\u3002\r\n\r\nOpen vSwitch (OvS) 2.7.x (\u003c=2.7.6)\u4e2d\u7684lib/ofp-actions.c\u4e2d\u7684decode_bundle\u51fd\u6570\u5728BUNDLE\u64cd\u4f5c\u89e3\u7801\u671f\u95f4\u5b58\u5728\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Open vSwitch\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenvSwitch  Open vSwitch  2.7.x (\u003c=2.7.6)"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-17206",
  "serverity": "\u4e2d",
  "submitTime": "2018-09-20",
  "title": "Open vSwitch\u7f13\u51b2\u533a\u8fc7\u8bfb\u6f0f\u6d1e"
}

CVE-2018-17206 (GCVE-0-2018-17206)

Vulnerability from cvelistv5 – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47

Summary

An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6. The decode_bundle function inside lib/ofp-actions.c is affected by a buffer over-read issue during BUNDLE action decoding.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2019:0053	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3873-1/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3500	vendor-advisoryx_refsource_REDHAT
https://github.com/openvswitch/ovs/commit/9237a63…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:0081	vendor-advisoryx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Date Public

2018-09-19 00:00

Show details on NVD website

JSON

To clipboard

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            "name": "[debian-lts-announce] 20210219 [SECURITY] [DLA 2571-1] openvswitch security update",
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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.