CVE-2023-46407

一、漏洞信息
 漏洞编号：[CVE-2023-46407](https://nvd.nist.gov/vuln/detail/CVE-2023-46407)
 漏洞归属组件：[ffmpeg](https://gitee.com/src-openeuler/ffmpeg)
 漏洞归属的版本：4.2.4,4.4.2
 CVSS V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
 漏洞简述：
  FFmpeg prior to commit bf814 was discovered to contain an out of bounds read via the dist->alphabet_size variable in the read_vlc_prefix() function.
 漏洞公开时间：2023-10-28 04:15:09
 漏洞创建时间：2023-10-28 04:30:50
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-46407
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| cve.mitre.org | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 |  |
| cve.mitre.org | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231013014959.536776-1-leo.izen%40gmail.com/ |  |
| cve.mitre.org | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231015004924.597746-1-leo.izen%40gmail.com/ |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-46407 | https://bugzilla.suse.com/show_bug.cgi?id=1216695 |
| redhat_bugzilla | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 | https://bugzilla.redhat.com/show_bug.cgi?id=2246964 |
| redhat_bugzilla | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231013014959.536776-1-leo.izen@gmail.com/ | https://bugzilla.redhat.com/show_bug.cgi?id=2246964 |
| redhat_bugzilla | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231015004924.597746-1-leo.izen@gmail.com/ | https://bugzilla.redhat.com/show_bug.cgi?id=2246964 |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2023-46407 | https://explore.alas.aws.amazon.com/CVE-2023-46407.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46407 | https://explore.alas.aws.amazon.com/CVE-2023-46407.html |
| snyk | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 | https://security.snyk.io/vuln/SNYK-UNMANAGED-FFMPEG-6040818 |
| cve.mitre.org | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 |  |
| cve.mitre.org | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231013014959.536776-1-leo.izen@gmail.com/ |  |
| cve.mitre.org | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231015004924.597746-1-leo.izen@gmail.com/ |  |

</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:
  openBrain开源漏洞感知系统
 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/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 |  | cve.mitre.org |
|  |  | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 |  | redhat_bugzilla |
|  |  | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 |  | snyk |
|  |  | https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 |  | nvd |
|  |  | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231013014959.536776-1-leo.izen%40gmail.com/ |  | nvd |
|  |  | https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231015004924.597746-1-leo.izen%40gmail.com/ |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  FFmpeg prior to commit bf814 was discovered to contain an out of bounds read via the dist->alphabet_size variable in the read_vlc_prefix() function.缺陷已经修复
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
 受影响版本排查(受影响/不受影响)：
  1.master(4.2.4):不受影响
2.openEuler-20.03-LTS-SP1(4.2.4):不受影响
3.openEuler-20.03-LTS-SP3(4.2.4):不受影响
4.openEuler-20.03-LTS-SP4:不受影响
5.openEuler-22.03-LTS(4.2.4):不受影响
6.openEuler-22.03-LTS-SP1(4.2.4):不受影响
7.openEuler-22.03-LTS-SP2(4.2.4):不受影响
8.openEuler-22.03-LTS-SP3:不受影响
9.openEuler-22.03-LTS-SP4:不受影响
10.openEuler-22.03-LTS-Next(4.2.4):不受影响
11.openEuler-23.09:不受影响
12.openEuler-24.03-LTS(6.1.1):不受影响
13.openEuler-24.03-LTS-Next(6.1.1):不受影响

修复是否涉及abi变化(是/否)：
  1.master(4.2.4):否
2.openEuler-20.03-LTS-SP1(4.2.4):否
3.openEuler-20.03-LTS-SP3(4.2.4):否
4.openEuler-20.03-LTS-SP4:否
5.openEuler-22.03-LTS(4.2.4):否
6.openEuler-22.03-LTS-SP1(4.2.4):否
7.openEuler-22.03-LTS-SP2(4.2.4):否
8.openEuler-22.03-LTS-SP3:否
9.openEuler-22.03-LTS-SP4:否
10.openEuler-22.03-LTS-Next(4.2.4):否
11.openEuler-23.09:否
12.openEuler-24.03-LTS(6.1.1):否
13.openEuler-24.03-LTS-Next(6.1.1):否

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