CVE-2020-36403

一、漏洞信息
 漏洞编号：[CVE-2020-36403](https://nvd.nist.gov/vuln/detail/CVE-2020-36403)
 漏洞归属组件：[htslib](https://gitee.com/src-openeuler/htslib)
 漏洞归属的版本：1.10.2
 CVSS V3.0分值：
  BaseScore：8.8 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
 漏洞简述：
  HTSlib through 1.10.2 allows out-of-bounds write access in vcf_parse_format (called from vcf_parse and vcf_read).
 漏洞公开时间：2021-07-01 11:15
 漏洞创建时间：2022-02-07 18:20:40
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2020-36403
<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/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml |  |
| MISC | https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  |
| MISC | https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097 |  |
| MISC | https://github.com/samtools/htslib/pull/1447 |  |
| redhat | https://access.redhat.com/security/cve/CVE-2020-36403 |  |
| redhat_bugzilla | https://github.com/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml |  |
| redhat_bugzilla | https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36403 |  |
| ubuntu | https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097 |  |
| ubuntu | https://github.com/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml |  |
| ubuntu | https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2020-36403 |  |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2020-36403 |  |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2020-36403 |  |
| debian | https://security-tracker.debian.org/tracker/CVE-2020-36403 |  |
| github | https://github.com/google/oss-fuzz-vulns/blob/main/vulns/htslib/OSV-2020-955.yaml |  |
| github |  https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  |
| bugs |  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097 |  |

</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/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  | MISC |
|  |  | https://github.com/samtools/htslib/pull/1447 |  | MISC |
|  |  | https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  | redhat_bugzilla |
|  |  | https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  | ubuntu |
|  |  | https://github.com/samtools/htslib/commit/dcd4b7304941a8832fba2d0fc4c1e716e7a4e72c |  | nvd |
|  |  | https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24097 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
      The check for excessive record size in vcf_parse_format() only looked at individual fields. It was therefore possible to exceed the limit and overflow fmt_aux_t::offset by having multiple fields with a combined size that went over INT_MAX.Fix by including the amount of memory used so far in the check.  
 openEuler评分：
  8.8
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP1(1.11):受影响
2.openEuler-20.03-LTS-SP2(1.11):受影响
3.openEuler-20.03-LTS-SP3(1.11):受影响
4.openEuler-20.03-LTS:不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(1.11):是
2.openEuler-20.03-LTS-SP2(1.11):是
3.openEuler-20.03-LTS-SP3(1.11):是
4.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-2022-1963

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