CVE-2025-26595

一、漏洞信息
 漏洞编号：[CVE-2025-26595](https://nvd.nist.gov/vuln/detail/CVE-2025-26595)
 漏洞归属组件：[xorg-x11-server](https://gitee.com/src-openeuler/xorg-x11-server)
 漏洞归属的版本：1.20.10,1.20.11,1.20.8
 CVSS V3.0分值：
  BaseScore：7.8 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
 漏洞公开时间：2025-02-26 00:15:38
 漏洞创建时间：2025-02-27 01:08:35
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-26595
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2500 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2502 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2861 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2862 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2865 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2866 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2873 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2874 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2875 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2879 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2025:2880 |  |
| secalert.redhat.com | https://access.redhat.com/security/cve/CVE-2025-26595 |  |
| secalert.redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |  |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2500 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2502 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2866 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2862 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2861 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2865 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2873 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2875 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2874 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2879 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:2880 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2025:3976 | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2025-26595 |
| mageia |  | http://advisories.mageia.org/MGASA-2025-0086.html |
| osv | https://access.redhat.com/errata/RHSA-2025:2500 | https://osv.dev/vulnerability/CVE-2025-26595 |
| osv | https://access.redhat.com/errata/RHSA-2025:2502 | https://osv.dev/vulnerability/CVE-2025-26595 |
| osv | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 | https://osv.dev/vulnerability/CVE-2025-26595 |
| osv | https://access.redhat.com/security/cve/CVE-2025-26595 | https://osv.dev/vulnerability/CVE-2025-26595 |
| osv | https://security-tracker.debian.org/tracker/CVE-2025-26595 | https://osv.dev/vulnerability/CVE-2025-26595 |
| ZeroDay | https://lists.x.org/archives/xorg-announce/2025-February/003584.html | https://www.zerodayinitiative.com/advisories/ZDI-25-142/ |

</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://access.redhat.com/security/cve/CVE-2025-26595 |  | nvd |
|  |  | https://bugzilla.redhat.com/show_bug.cgi?id=2345257 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
 openEuler评分：
  7.8
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(1.20.11):受影响
2.openEuler-20.03-LTS-SP4(1.20.8):受影响
3.openEuler-22.03-LTS-SP3:受影响
4.openEuler-22.03-LTS-SP4:受影响
5.openEuler-24.03-LTS:受影响
6.openEuler-24.03-LTS-Next:受影响
7.openEuler-24.03-LTS-SP1:受影响
8.openEuler-24.03-LTS-SP2:受影响

修复是否涉及abi变化(是/否)：
  1.master(1.20.11):否
2.openEuler-20.03-LTS-SP4(1.20.8):否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2:否

原因说明：
  1.master(1.20.11):正常修复
2.openEuler-20.03-LTS-SP4(1.20.8):正常修复
3.openEuler-22.03-LTS-SP3:正常修复
4.openEuler-22.03-LTS-SP4:正常修复
5.openEuler-24.03-LTS:正常修复
6.openEuler-24.03-LTS-Next:正常修复
7.openEuler-24.03-LTS-SP1:正常修复
8.openEuler-24.03-LTS-SP2:正常修复

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