CVE-2019-6291

一、漏洞信息
 漏洞编号：[CVE-2019-6291](https://nvd.nist.gov/vuln/detail/CVE-2019-6291)
 漏洞归属组件：[nasm](https://gitee.com/src-openeuler/nasm)
 漏洞归属的版本：2.13.03
 CVSS V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
 漏洞简述：
  An issue was discovered in the function expr6 in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem caused by the expr6 function making recursive calls to itself in certain scenarios involving lots of  !  or  +  or  -  characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file.
 漏洞公开时间：2019-01-15 08:29
 漏洞创建时间：2022-02-21 10:04:13
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2019-6291
<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.nasm.us/show_bug.cgi?id=3392549 |  |
| redhat | https://access.redhat.com/security/cve/CVE-2019-6291 |  |

</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：
  An issue was discovered in the function expr6 in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem caused by the expr6 function making recursive calls to itself in certain scenarios involving lots of  !  or  +  or  -  characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file.
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/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.master(2.16.03):受影响
2.openEuler-20.03-LTS-SP4(2.15.05):受影响
3.openEuler-22.03-LTS-SP3(2.15.05):受影响
4.openEuler-22.03-LTS-SP4(2.15.05):受影响
5.openEuler-24.03-LTS(2.16.01):受影响
6.openEuler-24.03-LTS-Next(2.16.01):受影响
7.openEuler-24.03-LTS-SP1(2.16.01):受影响
8.openEuler-24.03-LTS-SP2(2.16.01):

修复是否涉及abi变化(是/否)：
  1.master(2.16.03):否
2.openEuler-20.03-LTS-SP4(2.15.05):否
3.openEuler-22.03-LTS-SP3(2.15.05):否
4.openEuler-22.03-LTS-SP4(2.15.05):否
5.openEuler-24.03-LTS(2.16.01):否
6.openEuler-24.03-LTS-Next(2.16.01):否
7.openEuler-24.03-LTS-SP1(2.16.01):否
8.openEuler-24.03-LTS-SP2(2.16.01):

原因说明：
  1.master(2.16.03):暂不修复-暂无解决方案或补丁
2.openEuler-20.03-LTS-SP4(2.15.05):暂不修复-暂无解决方案或补丁
3.openEuler-22.03-LTS-SP3(2.15.05):暂不修复-暂无解决方案或补丁
4.openEuler-22.03-LTS-SP4(2.15.05):暂不修复-暂无解决方案或补丁
5.openEuler-24.03-LTS(2.16.01):暂不修复-暂无解决方案或补丁
6.openEuler-24.03-LTS-Next(2.16.01):暂不修复-暂无解决方案或补丁
7.openEuler-24.03-LTS-SP1(2.16.01):暂不修复-暂无解决方案或补丁
8.openEuler-24.03-LTS-SP2(2.16.01):

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