Vulnerability-Lookup

CNVD-2020-23177

Vulnerability from cnvd - Published: 2020-04-16

Title

HAProxy缓冲区溢出漏洞

Description

HAProxy是法国HAProxy公司的一款开源的TCP/HTTP负载均衡服务器。该服务器提供4层、7层代理，并能支持上万级别的连接，具有高效、稳定等特点。 HAProxy 1.8版本至2.x版本（2.1.4版本已修复）中的HPACK解码器的hpack-tbl.c文件的hpack_dht_insert存在安全漏洞。远程攻击者可借助特制的HTTP/2请求利用该漏洞执行代码。

Severity

高

Patch Name

HAProxy缓冲区溢出漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.haproxy.org/download/2.1/src/CHANGELOG

Impacted products

Name
HAProxy HAProxy >=1.8，<=2.1.4

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-11100"
    }
  },
  "description": "HAProxy\u662f\u6cd5\u56fdHAProxy\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684TCP/HTTP\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\u3002\u8be5\u670d\u52a1\u5668\u63d0\u4f9b4\u5c42\u30017\u5c42\u4ee3\u7406\uff0c\u5e76\u80fd\u652f\u6301\u4e0a\u4e07\u7ea7\u522b\u7684\u8fde\u63a5\uff0c\u5177\u6709\u9ad8\u6548\u3001\u7a33\u5b9a\u7b49\u7279\u70b9\u3002\n\nHAProxy 1.8\u7248\u672c\u81f32.x\u7248\u672c\uff082.1.4\u7248\u672c\u5df2\u4fee\u590d\uff09\u4e2d\u7684HPACK\u89e3\u7801\u5668\u7684hpack-tbl.c\u6587\u4ef6\u7684hpack_dht_insert\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684HTTP/2\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.haproxy.org/download/2.1/src/CHANGELOG",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-23177",
  "openTime": "2020-04-16",
  "patchDescription": "HAProxy\u662f\u6cd5\u56fdHAProxy\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684TCP/HTTP\u8d1f\u8f7d\u5747\u8861\u670d\u52a1\u5668\u3002\u8be5\u670d\u52a1\u5668\u63d0\u4f9b4\u5c42\u30017\u5c42\u4ee3\u7406\uff0c\u5e76\u80fd\u652f\u6301\u4e0a\u4e07\u7ea7\u522b\u7684\u8fde\u63a5\uff0c\u5177\u6709\u9ad8\u6548\u3001\u7a33\u5b9a\u7b49\u7279\u70b9\u3002\r\n\r\nHAProxy 1.8\u7248\u672c\u81f32.x\u7248\u672c\uff082.1.4\u7248\u672c\u5df2\u4fee\u590d\uff09\u4e2d\u7684HPACK\u89e3\u7801\u5668\u7684hpack-tbl.c\u6587\u4ef6\u7684hpack_dht_insert\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684HTTP/2\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4ee3\u7801\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": "HAProxy\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "HAProxy HAProxy \u003e=1.8\uff0c\u003c=2.1.4"
  },
  "serverity": "\u9ad8",
  "submitTime": "2020-04-03",
  "title": "HAProxy\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-11100 (GCVE-0-2020-11100)

Vulnerability from cvelistv5 – Published: 2020-04-02 14:23 – Updated: 2024-08-04 11:21

Summary

In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

14 references

URL	Tags
http://www.haproxy.org	x_refsource_MISC
https://www.haproxy.org/download/2.1/src/CHANGELOG	x_refsource_CONFIRM
https://lists.debian.org/debian-security-announce…	x_refsource_CONFIRM
https://www.mail-archive.com/haproxy%40formilux.o…	x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1819111	x_refsource_CONFIRM
https://git.haproxy.org/?p=haproxy.git%3Ba=commit…	x_refsource_CONFIRM
https://bugzilla.suse.com/show_bug.cgi?id=1168023	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2020/dsa-4649	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4321-1/	vendor-advisoryx_refsource_UBUNTU
http://packetstormsecurity.com/files/157323/hapro…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202012-22	vendor-advisoryx_refsource_GENTOO

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.