CVE-2020-12403

一、漏洞信息
 漏洞编号：[CVE-2020-12403](https://nvd.nist.gov/vuln/detail/CVE-2020-12403)
 漏洞归属组件：[nss](https://gitee.com/src-openeuler/nss)
 漏洞归属的版本：3.40.1,3.54.0,3.72.0,3.76.0,3.85.0
 CVSS V3.0分值：
  BaseScore：6.8 Medium
  Vector：CVSS：3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H
 漏洞简述：
  A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.
 漏洞公开时间：2021-05-28 03:15
 漏洞创建时间：2021-03-17 18:41:11
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2020-12403
<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://bugzilla.redhat.com/show_bug.cgi?id=1868931 |  |
| MISC | https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes |  |
| nvd | https://access.redhat.com/security/cve/CVE-2020-12403 |  |
| redhat_bugzilla | https://bugzilla.mozilla.org/show_bug.cgi?id=1636771 |  |
| redhat_bugzilla | https://hg.mozilla.org/projects/nss/rev/f282556e6cc7715f5754aeaadda6f902590e7e38 |  |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12403 |  |
| ubuntu | https://access.redhat.com/security/cve/CVE-2020-12403 |  |
| ubuntu | https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes |  |
| ubuntu | https://ubuntu.com/security/notices/USN-4476-1 |  |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2020-12403 |  |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2020-12403 |  |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2020-12403 |  |
| ubuntu | https://bugzilla.mozilla.org/show_bug.cgi?id=1636771 |  |
| debian | https://security-tracker.debian.org/tracker/CVE-2020-12403 |  |
| oracle | https://www.oracle.com/security-alerts/linuxbulletinoct2020.html |  |
| gentoo | https://security.gentoo.org/glsa/202008-08 |  |

</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://hg.mozilla.org/projects/nss/rev/f282556e6cc7715f5754aeaadda6f902590e7e38 |  | redhat_bugzilla |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
    在NSS中实施CHACHA20-POLY1305的方式中存在一个缺陷。当使用多部分的Chacha20时，可能会导致越界读取,严重影响数据机密性和系统可用性。通过显式禁用多部分ChaCha20并严格执行标签长度，可以解决此问题。 
 openEuler评分：
  6.8
 Vector：CVSS：3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS(3.54.0):受影响
2.openEuler-20.03-LTS-SP1(3.54.0):受影响
3.openEuler-20.09(3.54.0):受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(3.54.0):
2.openEuler-20.03-LTS-SP3(3.54.0):
3.openEuler-22.03-LTS(3.72.0):
4.openEuler-22.03-LTS-SP1(3.72.0):

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2021-1115

src-openEuler/nss
关闭

内容风险标识

评论 (5)

src-openEuler/nss关闭 .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2020-12403

评论 (5)

搜索帮助

src-openEuler/nss
关闭