CVE-2025-31115

一、漏洞信息
 漏洞编号：[CVE-2025-31115](https://nvd.nist.gov/vuln/detail/CVE-2025-31115)
 漏洞归属组件：[xz](https://gitee.com/src-openeuler/xz)
 漏洞归属的版本：5.2.10,5.2.5,5.4.4,5.4.7,5.6.3,5.6.4,5.8.0,5.8.1
 CVSS V3.0分值：
  BaseScore：N/A None
  Vector：CVSS：3.0/
 漏洞简述：
  XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.
 漏洞公开时间：2025-04-04 01:15:30
 漏洞创建时间：2025-04-04 03:36:34
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-31115
<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/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480 |  |
| security-advisories.github.com | https://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2 |  |
| security-advisories.github.com | https://tukaani.org/xz/xz-cve-2025-31115.patch |  |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/04/03/1 |  |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/04/03/2 |  |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2025/04/03/3 |  |
| suse_bugzilla | https://smelt.suse.de/incident/38155/ | https://bugzilla.suse.com/show_bug.cgi?id=1240414 |
| gentoo |  | https://security.gentoo.org/glsa/202504-01 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2025-31115 |
| mageia |  | http://advisories.mageia.org/MGASA-2025-0131.html |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2025-31115 | https://explore.alas.aws.amazon.com/CVE-2025-31115.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-31115 | https://explore.alas.aws.amazon.com/CVE-2025-31115.html |

</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/tukaani-project/xz/commit/d5a2ffe41bb77b918a8c96084885d4dbe4bf6480 |  | security-advisories.github.com |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected.
 openEuler评分：
  8.2
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
 受影响版本排查(受影响/不受影响)：
  1.master(5.8.1):受影响
2.openEuler-24.03-LTS(5.4.7):受影响
3.openEuler-24.03-LTS-Next(5.4.7):受影响
4.openEuler-24.03-LTS-SP1(5.4.7):受影响
5.openEuler-20.03-LTS-SP4(5.2.5):不受影响
6.openEuler-22.03-LTS-SP3(5.2.5):不受影响
7.openEuler-22.03-LTS-SP4(5.2.5):不受影响

修复是否涉及abi变化(是/否)：
  1.master(5.8.1):否
2.openEuler-20.03-LTS-SP4(5.2.5):否
3.openEuler-22.03-LTS-SP3(5.2.5):否
4.openEuler-22.03-LTS-SP4(5.2.5):否
5.openEuler-24.03-LTS(5.4.7):否
6.openEuler-24.03-LTS-Next(5.4.7):否
7.openEuler-24.03-LTS-SP1(5.4.7):否

原因说明：
  1.master(5.8.1):正常修复
2.openEuler-24.03-LTS(5.4.7):正常修复
3.openEuler-24.03-LTS-Next(5.4.7):正常修复
4.openEuler-24.03-LTS-SP1(5.4.7):正常修复
5.openEuler-20.03-LTS-SP4(5.2.5):不受影响-漏洞代码不存在
6.openEuler-22.03-LTS-SP3(5.2.5):不受影响-漏洞代码不存在
7.openEuler-22.03-LTS-SP4(5.2.5):不受影响-漏洞代码不存在

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1431

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