CVE-2021-43859

一、漏洞信息
 漏洞编号：[CVE-2021-43859](https://nvd.nist.gov/vuln/detail/CVE-2021-43859)
 漏洞归属组件：[xstream](https://gitee.com/src-openeuler/xstream)
 漏洞归属的版本：1.4.11.1,1.4.18
 CVSS V3.0分值：
  BaseScore：7.5 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.
 漏洞公开时间：2022-02-01 20:15
 漏洞创建时间：2022-02-05 03:30:09
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-43859
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| CONFIRM | https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf |  |
| MISC | https://x-stream.github.io/CVE-2021-43859.html |  |
| MISC | https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 |  |
| MLIST | http://www.openwall.com/lists/oss-security/2022/02/09/1 |  |
| FEDORA | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X/ |  |
| FEDORA | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ/ |  |
| MLIST | https://lists.debian.org/debian-lts-announce/2022/02/msg00018.html |  |
| MISC | https://www.oracle.com/security-alerts/cpuapr2022.html |  |
| redhat | https://access.redhat.com/security/cve/CVE-2021-43859 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-43859 |  |
| suse_bugzilla | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43859 |  |
| suse_bugzilla | https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf |  |
| suse_bugzilla | https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 |  |
| redhat_bugzilla | https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf |  |
| redhat_bugzilla | https://x-stream.github.io/CVE-2021-43859.html |  |
| redhat_bugzilla | https://gitlab.cee.redhat.com/mk-ci-cd/app-services-operator-midstream/blob/production/pom.xml |  |
| redhat_bugzilla | https://gitlab.cee.redhat.com/mk-ci-cd/kas-fleetshard/blob/production/pom.xml |  |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43859 |  |
| ubuntu | https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf |  |
| ubuntu | https://x-stream.github.io/CVE-2021-43859.html |  |
| ubuntu | https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 |  |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2021-43859 |  |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2021-43859 |  |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2021-43859 |  |
| debian | https://security-tracker.debian.org/tracker/CVE-2021-43859 |  |
| oracle | https://www.oracle.com/security-alerts/cpuapr2022.html |  |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  其它
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 |  | MISC |
|  |  | https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 |  | suse_bugzilla |
|  |  | https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 |  | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
      XStream 是一个开源 java 库，用于将对象序列化为 XML 并再次返回。1.4.19 之前的版本可能允许远程攻击者根据 CPU 类型或此类有效负载的并行执行在目标系统上分配 100% 的 CPU 时间，从而仅通过操纵处理过的输入流来导致拒绝服务。XStream 1.4.19 监控并累积将元素添加到集合中所花费的时间，如果超过设定的阈值则抛出异常。建议用户尽快升级。无法升级的用户可以设置 NO_REFERENCE 模式来防止递归。如果无法升级，请参阅 GHSA-rmr5-cpv2-vgjf 以获取有关解决方法的更多详细信息。  
 openEuler评分：
  7.5
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(1.4.18):受影响
2.openEuler-20.03-LTS-Next(1.4.18):受影响
3.openEuler-20.03-LTS-SP1(1.4.18):受影响
4.openEuler-20.03-LTS-SP2(1.4.18):受影响
5.openEuler-20.03-LTS-SP3(1.4.18):受影响
6.openEuler-22.03-LTS-Next(1.4.18):受影响
7.openEuler-22.03-LTS(1.4.18):受影响
8.openEuler-21.09(1.4.18):受影响
9.openEuler-20.03-LTS:不受影响

修复是否涉及abi变化(是/否)：
  1.master(1.4.18):否
2.openEuler-20.03-LTS-Next(1.4.18):否
3.openEuler-20.03-LTS-SP1(1.4.18):否
4.openEuler-20.03-LTS-SP2(1.4.18):否
5.openEuler-20.03-LTS-SP3(1.4.18):否
6.openEuler-22.03-LTS-Next(1.4.18):否
7.openEuler-22.03-LTS(1.4.18):否
8.openEuler-21.09(1.4.18):否
9.openEuler-20.03-LTS:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2022-2066

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