Vulnerability-Lookup

CNVD-2020-43754

Vulnerability from cnvd - Published: 2020-07-30

Title

QEMU libslirp缓冲区溢出漏洞

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。libslirp是一款用于在虚拟机管理程序中管理虚拟网络服务的通用TCP-IP模拟器。 QEMU中的libslirp 4.3.1之前版本的SLiRP网络实现存在缓冲区溢出漏洞。攻击者可利用该漏洞获取信息。

Severity

低

Patch Name

QEMU libslirp缓冲区溢出漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://gitlab.freedesktop.org/slirp/libslirp/-/commit/c7ede54cbd2e2b25385325600958ba0124e31cc0

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1835986

Impacted products

Name
QEMU libslirp <4.3.1

Show details on source website

JSON

To clipboard

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      "cveNumber": "CVE-2020-10756",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-10756"
    }
  },
  "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\u3002libslirp\u662f\u4e00\u6b3e\u7528\u4e8e\u5728\u865a\u62df\u673a\u7ba1\u7406\u7a0b\u5e8f\u4e2d\u7ba1\u7406\u865a\u62df\u7f51\u7edc\u670d\u52a1\u7684\u901a\u7528TCP-IP\u6a21\u62df\u5668\u3002\n\nQEMU\u4e2d\u7684libslirp 4.3.1\u4e4b\u524d\u7248\u672c\u7684SLiRP\u7f51\u7edc\u5b9e\u73b0\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://gitlab.freedesktop.org/slirp/libslirp/-/commit/c7ede54cbd2e2b25385325600958ba0124e31cc0",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-43754",
  "openTime": "2020-07-30",
  "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\u3002libslirp\u662f\u4e00\u6b3e\u7528\u4e8e\u5728\u865a\u62df\u673a\u7ba1\u7406\u7a0b\u5e8f\u4e2d\u7ba1\u7406\u865a\u62df\u7f51\u7edc\u670d\u52a1\u7684\u901a\u7528TCP-IP\u6a21\u62df\u5668\u3002\r\n\r\nQEMU\u4e2d\u7684libslirp 4.3.1\u4e4b\u524d\u7248\u672c\u7684SLiRP\u7f51\u7edc\u5b9e\u73b0\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u4fe1\u606f\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 libslirp\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU libslirp \u003c4.3.1"
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  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1835986",
  "serverity": "\u4f4e",
  "submitTime": "2020-07-12",
  "title": "QEMU libslirp\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-10756 (GCVE-0-2020-10756)

Vulnerability from cvelistv5 – Published: 2020-07-09 15:34 – Updated: 2024-08-04 11:14

Summary

An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.

Severity

No CVSS data available.

CWE

Out-of-bounds Read

Assigner

redhat redhat root Scorecard

References

10 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1835986	x_refsource_MISC
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/2020/dsa-4728	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4437-1/	vendor-advisoryx_refsource_UBUNTU
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC
https://usn.ubuntu.com/4467-1/	vendor-advisoryx_refsource_UBUNTU
https://security.netapp.com/advisory/ntap-2020100…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Slirp	Affected: All libslirp versions before 4.3.1

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.

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.

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CNVD-2020-43754

CVE-2020-10756 (GCVE-0-2020-10756)

Tags

Sightings

Nomenclature

Related by attack behaviour