CVE-2025-26603

一、漏洞信息
 漏洞编号：[CVE-2025-26603](https://nvd.nist.gov/vuln/detail/CVE-2025-26603)
 漏洞归属组件：[vim](https://gitee.com/src-openeuler/vim)
 漏洞归属的版本：8.2,9.0,9.0.2092,9.1.0764,9.1.1019
 CVSS V3.0分值：
  BaseScore：4.2 Medium
  Vector：CVSS：3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
 漏洞简述：
  Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages using the `:redir` ex command to register, variables and files. It also allows to show the contents of registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a register, Vim will free the register content before storing the new content in the register. Now when redirecting the `:display` command to a register that is being displayed, Vim will free the content while shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the ex_display() function, that it does not try to redirect to a register while displaying this register at the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
 漏洞公开时间：2025-02-19 03:15:29
 漏洞创建时间：2025-02-19 09:55:08
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-26603
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| security-advisories.github.com | https://github.com/vim/vim/commit/c0f0e2380e5954f4a52a131bf6b8 |  |
| security-advisories.github.com | https://github.com/vim/vim/security/advisories/GHSA-63p5-mwg2-787v |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-26603 | https://bugzilla.suse.com/show_bug.cgi?id=1237359 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2025-26603 | https://bugzilla.suse.com/show_bug.cgi?id=1237359 |
| suse_bugzilla | https://github.com/vim/vim/commit/c0f0e2380e5954f4a52a131bf6b8 | https://bugzilla.suse.com/show_bug.cgi?id=1237359 |
| suse_bugzilla | https://github.com/vim/vim/security/advisories/GHSA-63p5-mwg2-787v | https://bugzilla.suse.com/show_bug.cgi?id=1237359 |

</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/vim/vim/commit/c0f0e2380e5954f4a52a131bf6b8 |  | security-advisories.github.com |
|  |  | https://github.com/vim/vim/commit/c0f0e2380e5954f4a52a131bf6b8 |  | suse_bugzilla |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  Vim 的 :redir 命令中发现了一个缺陷。此漏洞通过将 :display 命令重定向到剪贴板寄存器（* 或 +）来允许使用释放后使用的情况，从而允许访问已释放的内存。此漏洞被标记为低影响，因为它要求用户运行不受信任/恶意的 Vim 命令。不应运行不受信任的 Vim 脚本，因为它们已经可以执行任意 shell 命令。
 openEuler评分：
  4.2
 Vector：CVSS：3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
 受影响版本排查(受影响/不受影响)：
  1.master(9.1.0764):受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS-SP3(9.0):受影响
4.openEuler-22.03-LTS-SP4(9.0):受影响
5.openEuler-24.03-LTS(9.0.2092):受影响
6.openEuler-24.03-LTS-Next(9.0.2092):受影响
7.openEuler-24.03-LTS-SP1(9.0.2092):受影响

修复是否涉及abi变化(是/否)：
  1.master(9.1.0764):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3(9.0):否
4.openEuler-22.03-LTS-SP4(9.0):否
5.openEuler-24.03-LTS(9.0.2092):否
6.openEuler-24.03-LTS-Next(9.0.2092):否
7.openEuler-24.03-LTS-SP1(9.0.2092):否

原因说明：
  1.master(9.1.0764):正常修复
2.openEuler-20.03-LTS-SP4:正常修复
3.openEuler-22.03-LTS-SP3(9.0):正常修复
4.openEuler-22.03-LTS-SP4(9.0):正常修复
5.openEuler-24.03-LTS(9.0.2092):正常修复
6.openEuler-24.03-LTS-Next(9.0.2092):正常修复
7.openEuler-24.03-LTS-SP1(9.0.2092):正常修复

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1231

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