CVE-2021-32256

一、漏洞信息
 漏洞编号：[CVE-2021-32256](https://nvd.nist.gov/vuln/detail/CVE-2021-32256)
 漏洞归属组件：[binutils](https://gitee.com/src-openeuler/binutils)
 漏洞归属的版本：2.34,2.36.1,2.37,2.40,2.41,2.42
 CVSS V3.x分值：
  BaseScore：6.5 Medium
  Vector：CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
 漏洞简述：
  An issue was discovered in GNU libiberty, as distributed in GNU Binutils 2.36. It is a stack-overflow issue in demangle_type in rust-demangle.c.
 漏洞公开时间：2023-07-18 22:15:11
 漏洞创建时间：2025-10-20 10:51:44
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2021-32256
<details>
<summary>更多参考(点击展开)</summary>

无
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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:
  七彩瞬析开源风险感知平台
 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：
  Notes:  1. The bug is only triggered by attempting to demangle a deliberately malformed string.  Properly mangled strings produced by the Rust compiler - or other language compilers - will not trigger this bug.  Therefore it is unlikely to ever be encountered by most users.  2. This bug, or a similar one, was reported upstream in the GCC bugzilla system and fixed there.  The fix was included in the binutils 2.38 release.  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105039  3. The bug triggers a stack exhaustion effect, but not a privilege escalation effect.  As such it might conceivably be used a part of a denial of service attack, or to conceal other malicious code in a binary, but that is about it.  4. According to the GNU Binutils  SECURITY.txt document, this bug would not qualify as a security bug - or a CVE - since it cannot threaten the security of a system.See https://bugzilla.redhat.com/show_bug.cgi?id=2223860结论:该CVE被视为普通bug而不是会威胁系统安全的安全漏洞，分析结论为受影响（bug存在）但进行选择性修复，如有场景触发bug导致运行报错，再考虑回合修复。
 openEuler评分：
  6.5
 Vector：CVSS:3.1/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.master(2.41):受影响
2.openEuler-20.03-LTS-SP4(2.34):受影响
3.openEuler-22.03-LTS-SP3(2.37):受影响
4.openEuler-22.03-LTS-SP4(2.42):受影响
5.openEuler-24.03-LTS(2.41):受影响
6.openEuler-24.03-LTS-Next(2.42):受影响
7.openEuler-24.03-LTS-SP1(2.42):受影响
8.openEuler-24.03-LTS-SP2(2.42):受影响
9.openEuler-24.03-LTS-SP3(2.42):受影响

修复是否涉及abi变化(是/否)：
  1.master(2.41):否
2.openEuler-20.03-LTS-SP4(2.34):否
3.openEuler-22.03-LTS-SP3(2.37):否
4.openEuler-22.03-LTS-SP4(2.42):否
5.openEuler-24.03-LTS(2.41):否
6.openEuler-24.03-LTS-Next(2.42):否
7.openEuler-24.03-LTS-SP1(2.42):否
8.openEuler-24.03-LTS-SP2(2.42):否
9.openEuler-24.03-LTS-SP3(2.42):否

原因说明：
  1.master(2.41):不修复-超出修复范围
2.openEuler-20.03-LTS-SP4(2.34):不修复-超出修复范围
3.openEuler-22.03-LTS-SP3(2.37):不修复-超出修复范围
4.openEuler-22.03-LTS-SP4(2.42):不修复-超出修复范围
5.openEuler-24.03-LTS(2.41):不修复-超出修复范围
6.openEuler-24.03-LTS-Next(2.42):不修复-超出修复范围
7.openEuler-24.03-LTS-SP1(2.42):不修复-超出修复范围
8.openEuler-24.03-LTS-SP2(2.42):不修复-超出修复范围
9.openEuler-24.03-LTS-SP3(2.42):不修复-超出修复范围

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