CVE-2020-18442

一、漏洞信息
 漏洞编号：[CVE-2020-18442](https://nvd.nist.gov/vuln/detail/CVE-2020-18442)
 漏洞归属组件：[zziplib](https://gitee.com/src-openeuler/zziplib)
 漏洞归属的版本：0.13.69,0.13.71
 CVSS V3.0分值：
  BaseScore：6.5 Medium
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
 漏洞简述：
  Infinite Loop in zziplib v0.13.69 allows remote attackers to cause a denial of service via the return value  zzip_file_read  in the function  unzzip_cat_file .
 漏洞公开时间：2021-06-18 23:15
 漏洞创建时间：2021-06-22 10:10:13
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2020-18442
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| MISC | https://github.com/gdraheim/zziplib/issues/68 |  |
| MLIST | https://lists.debian.org/debian-lts-announce/2021/12/msg00021.html |  |
| FEDORA | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TCFYD46OY4VAGJ4UX7IFOH5SHD4UW4ZA/ |  |
| FEDORA | https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVANTEBDQGOIPC5KCEVAGA5KT4KKTGWB/ |  |
| nvd | https://access.redhat.com/security/cve/CVE-2020-18442 |  |
| suse_bugzilla | https://github.com/gdraheim/zziplib/issues/68 |  |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=1973826 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-18442 |  |
| suse_bugzilla | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18442 |  |
| suse_bugzilla | https://github.com/gdraheim/zziplib/issues/68 |  |
| suse_bugzilla | https://build.suse.de/request/show/243469 |  |
| suse_bugzilla | https://build.suse.de/request/show/243488 |  |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18442 |  |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2020-18442 |  |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2020-18442 |  |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2020-18442 |  |
| ubuntu | https://github.com/gdraheim/zziplib/issues/68 |  |
| debian | https://security-tracker.debian.org/tracker/CVE-2020-18442 |  |
| oracle | https://www.oracle.com/security-alerts/linuxbulletinoct2021.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>

无
</details>

二、漏洞分析结构反馈
 影响性分析说明：
    zziplib v0.13.69 中的无限循环允许远程攻击者通过函数“unzzip_cat_file”中的“zzip_file_read”的返回值“zzip_file_read”导致拒绝服务。 
 openEuler评分：
  6.5
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP1(0.13.69):受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(0.13.69):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2021-1247

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