cnvd - cnvd-2020-41713

cnvd-2020-41713

Vulnerability from cnvd

Title: Libreswan缓冲区溢出漏洞

Description:

Libreswan是一个类似于Openswan的IPsec实现，它主要用于保证数据传输中的安全性、完整性问题。

libreswan 3.27版本至3.31版本中的pluto守护进程存在缓冲区溢出漏洞。攻击者可通过发送特制的IKEv1 Informational Exchange数据包利用该漏洞使libreswan崩溃。

Severity: 中

Patch Name: Libreswan缓冲区溢出漏洞的补丁

Patch Description:

Libreswan是一个类似于Openswan的IPsec实现，它主要用于保证数据传输中的安全性、完整性问题。

libreswan 3.27版本至3.31版本中的pluto守护进程存在缓冲区溢出漏洞。攻击者可通过发送特制的IKEv1 Informational Exchange数据包利用该漏洞使libreswan崩溃。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-1763

Impacted products

Name
Libreswan Libreswan >=3.27，<=3.31

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-1763"
    }
  },
  "description": "Libreswan\u662f\u4e00\u4e2a\u7c7b\u4f3c\u4e8eOpenswan\u7684IPsec\u5b9e\u73b0\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u5b89\u5168\u6027\u3001\u5b8c\u6574\u6027\u95ee\u9898\u3002\n\nlibreswan 3.27\u7248\u672c\u81f33.31\u7248\u672c\u4e2d\u7684pluto\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684IKEv1 Informational Exchange\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7flibreswan\u5d29\u6e83\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://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-41713",
  "openTime": "2020-07-22",
  "patchDescription": "Libreswan\u662f\u4e00\u4e2a\u7c7b\u4f3c\u4e8eOpenswan\u7684IPsec\u5b9e\u73b0\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u5b89\u5168\u6027\u3001\u5b8c\u6574\u6027\u95ee\u9898\u3002\r\n\r\nlibreswan 3.27\u7248\u672c\u81f33.31\u7248\u672c\u4e2d\u7684pluto\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684IKEv1 Informational Exchange\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7flibreswan\u5d29\u6e83\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": "Libreswan\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e \u7684\u8865\u4e01",
  "products": {
    "product": "Libreswan Libreswan \u003e=3.27\uff0c\u003c=3.31"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-1763",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-13",
  "title": "Libreswan\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-1763 (GCVE-0-2020-1763)

Vulnerability from cvelistv5

Published

2020-05-12 13:41

Modified

2024-08-04 06:46

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-125

Summary

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.

References

▼	URL	Tags
	https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=1813329	x_refsource_MISC
	https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8	x_refsource_CONFIRM
	https://www.debian.org/security/2020/dsa-4684	vendor-advisory, x_refsource_DEBIAN
	https://security.gentoo.org/glsa/202007-21	vendor-advisory, x_refsource_GENTOO
	https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf	x_refsource_CONFIRM
	https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	the libreswan Project	libreswan	Version: from versions 3.27 till 3.31

Show details on NVD website

JSON

To clipboard

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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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