CVE-2025-4877

一、漏洞信息
 漏洞编号：[CVE-2025-4877](https://nvd.nist.gov/vuln/detail/CVE-2025-4877)
 漏洞归属组件：[libssh](https://gitee.com/src-openeuler/libssh)
 漏洞归属的版本：0.10.4,0.10.5,0.9.4,0.9.5,0.9.6
 CVSS V3.0分值：
  BaseScore：4.5 Medium
  Vector：CVSS：3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
 漏洞简述：
  There s a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to ssh_get_fingerprint_hash() function. In such cases the bin_to_base64() function can experience an integer overflow leading to a memory under allocation, when that happens it s possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.
 漏洞公开时间：2025-08-20 21:15:28
 漏洞创建时间：2025-06-27 03:11:33
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-4877
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://ubuntu.com/security/CVE-2025-4877 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-4877 |  |
|  | https://security-tracker.debian.org/tracker/CVE-2025-4877 |  |
|  | https://www.libssh.org/2025/06/24/libssh-0-11-2-security-and-bugfix-release/ |  |
|  | https://seclists.org/oss-sec/2025/q2/284 |  |
|  | https://www.mend.io/vulnerability-database/CVE-2025-4877 |  |
|  | https://www.suse.com/security/cve/CVE-2025-4877.html |  |
|  | https://bugzilla.suse.com/1245309 |  |
|  | https://www.suse.com/security/cve/CVE-2025-4877.html |  |
|  | https://bugzilla.suse.com/1245309 |  |
|  | https://www.suse.com/security/cve/CVE-2025-4877.html |  |
|  | https://bugzilla.suse.com/1245309 |  |
|  | https://www.suse.com/security/cve/CVE-2025-4877.html |  |
|  | https://bugzilla.suse.com/1245309 |  |
|  | http://people.ubuntu.com/~ubuntu-security/cve/CVE-2025-4877 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-4877 |  |
|  | https://access.redhat.com/security/cve/CVE-2025-4877 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2376193 |  |
|  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  |
|  | https://www.libssh.org/security/advisories/CVE-2025-4877.txt |  |
|  | https://security-tracker.debian.org/tracker/CVE-2025-4877 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4877 |  |
|  | https://access.redhat.com/security/cve/CVE-2025-4877 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2376193 |  |
|  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  |
|  | https://www.libssh.org/security/advisories/CVE-2025-4877.txt |  |
|  | http://people.ubuntu.com/~ubuntu-security/cve/CVE-2025-4877 |  |
|  | https://access.redhat.com/security/cve/CVE-2025-4877 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2376193 |  |
|  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  |
|  | https://www.libssh.org/security/advisories/CVE-2025-4877.txt |  |
|  | http://people.ubuntu.com/~ubuntu-security/cve/CVE-2025-4877 |  |
|  | https://access.redhat.com/security/cve/CVE-2025-4877 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2376193 |  |
|  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  |
|  | https://www.libssh.org/security/advisories/CVE-2025-4877.txt |  |
|  | http://people.ubuntu.com/~ubuntu-security/cve/CVE-2025-4877 |  |
|  | https://access.redhat.com/security/cve/CVE-2025-4877 |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2376193 |  |
|  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  |
|  | https://www.libssh.org/security/advisories/CVE-2025-4877.txt |  |
|  | https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2130 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4877 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4878 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-5372 |  |
|  | https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2129 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4877 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4878 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-5372 |  |
|  | https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2128 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4877 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-4878 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-5372 |  |

</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:
  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>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  | nvd |
|  |  | https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11&id=6fd9cc8ce3958092a1aae11f1f2e911b2747732d |  | snyk |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  A vulnerability classified as critical was found in libssh up to 0.11.1.The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.As an impact it is known to affect confidentiality, integrity, and availability.Upgrading to version 0.11.2 eliminates this vulnerability.
 openEuler评分：
  4.5
 Vector：CVSS：3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
 受影响版本排查(受影响/不受影响)：
  1.master:受影响
2.openEuler-20.03-LTS-SP4(0.9.4):受影响
3.openEuler-22.03-LTS-SP3(0.9.6):受影响
4.openEuler-22.03-LTS-SP4(0.9.6):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:否
2.openEuler-20.03-LTS-SP4(0.9.4):否
3.openEuler-22.03-LTS-SP3(0.9.6):否
4.openEuler-22.03-LTS-SP4(0.9.6):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:正常修复
2.openEuler-20.03-LTS-SP4(0.9.4):正常修复
3.openEuler-22.03-LTS-SP3(0.9.6):正常修复
4.openEuler-22.03-LTS-SP4(0.9.6):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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-2294

src-openEuler/libssh

内容风险标识

评论 (8)

src-openEuler/libssh .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2025-4877

评论 (8)

搜索帮助

src-openEuler/libssh