CVE-2026-11610— 389 Directory Server 缓冲区错误漏洞
可能的 ATT&CK 技术 1AI
T1190 · Exploit Public-Facing Application影响版本矩阵 24
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一、 漏洞 CVE-2026-11610 基础信息
漏洞信息
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Vulnerability Title
389-ds-base: 389-ds-base: heap buffer overflow in sasl_io_recv() via padded sasl unbind
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). After a successful SASL bind with integrity protection (SSF > 0), an authenticated attacker can send a specially crafted oversized LDAP UNBIND packet that is copied into a 512-byte heap receive buffer without a bounds check in sasl_io_recv() in sasl_io.c. This allows up to approximately 2 megabytes of attacker-controlled data to overflow the buffer, causing a denial of service (server crash). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, any enrolled host, or any service account can trigger this vulnerability over the network after authenticating via GSSAPI. The vulnerable code path has existed since approximately 2013 (389-ds-base 1.3.2) and was not addressed by the CVE-2025-14905 fix, which patched a separate heap overflow in schema.c only.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
堆缓冲区溢出
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
389 Directory Server 缓冲区错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
389 Directory Server是389 Directory Server团队开源的一个高度可用、功能齐全、可靠和安全的LDAP服务器实现。 389 Directory Server存在缓冲区错误漏洞，该漏洞源于SASL I/O层的sasl_io_recv()函数中缺少边界检查，导致经过身份验证的攻击者可以发送特制的大型LDAP UNBIND数据包，复制到512字节的堆接收缓冲区时发生堆缓冲区溢出，允许约2兆字节的攻击者控制数据溢出缓冲区，造成拒绝服务（服务器崩溃）。以下版本受到影响：Red Ha
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| 389ds | 389-ds-base | 1.3.2 ~ 3.3.0 | - | |
| Red Hat | Red Hat Directory Server 11.5 E4S for RHEL 8 | 8060020260702180044.0ca98e7e ~ * | cpe:/a:redhat:directory_server_e4s:11.5::el8 | |
| Red Hat | Red Hat Directory Server 11.7 E4S for RHEL 8 | 8080020260702180836.f969626e ~ * | cpe:/a:redhat:directory_server_e4s:11.7::el8 | |
| Red Hat | Red Hat Directory Server 11.9 for RHEL 8 | 8100020260702145313.37ed7c03 ~ * | cpe:/a:redhat:directory_server:11.9::el8 | |
| Red Hat | Red Hat Directory Server 12.2 E4S for RHEL 9 | 9020020260703060155.1674d574 ~ * | cpe:/a:redhat:directory_server_e4s:12.2::el9 | |
| Red Hat | Red Hat Directory Server 12.4 E4S for RHEL 9 | 9040020260703055735.1674d574 ~ * | cpe:/a:redhat:directory_server_e4s:12.4::el9 | |
| Red Hat | Red Hat Enterprise Linux 10 | 0:3.2.0-8.el10_2 ~ * | cpe:/o:redhat:enterprise_linux:10.2 | |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:3.0.6-19.el10_0 ~ * | cpe:/o:redhat:enterprise_linux_eus:10.0 | |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.3.11.1-13.el7_9 ~ * | cpe:/o:redhat:rhel_els:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020260626120929.25e700aa ~ * | cpe:/a:redhat:enterprise_linux:8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 8040020260629123121.96015a92 ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 8040020260629123121.96015a92 ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 8060020260626130540.824efc52 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | 8060020260626130540.824efc52 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 8080020260630025241.6dbb3803 ~ * | cpe:/a:redhat:rhel_e4s:8.8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 8080020260630025241.6dbb3803 ~ * | cpe:/a:redhat:rhel_e4s:8.8::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:2.8.0-8.el9_8 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:2.2.4-19.el9_2 ~ * | cpe:/a:redhat:rhel_e4s:9.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 0:2.4.5-26.el9_4 ~ * | cpe:/a:redhat:rhel_e4s:9.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:2.6.1-22.el9_6 ~ * | cpe:/a:redhat:rhel_eus:9.6::appstream | |
| Red Hat | Red Hat Directory Server 13.2 | 1783452100 ~ * | cpe:/a:redhat:directory_server:13.2::el10 | |
| Red Hat | Red Hat Directory Server 12 | - | cpe:/a:redhat:directory_server:12 | |
| Red Hat | Red Hat Directory Server 13 | - | cpe:/a:redhat:directory_server:13 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 |
二、漏洞 CVE-2026-11610 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-11610 厂商安全公告 (18)
- 🔗 RHSA-2026:36641 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:36205 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:36202 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:36206 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:36204 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:36670 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisoryx_refsource_REDHAT
IV. Related Vulnerabilities
V. Comments for CVE-2026-11610
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