CVE-2026-11610— 389 Directory Server 缓冲区错误漏洞
一分钟漏洞结论
影响对象
389ds 389-ds-base
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application影响版本矩阵 24
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-11610 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
389-ds-base: 389-ds-base: heap buffer overflow in sasl_io_recv() via padded sasl unbind
来源: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
来源: CVE Program / CVE List V5
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 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-11610 的情报信息
请登录查看更多情报信息。
CVE-2026-11610 厂商安全公告 (18)
-
-
🔗 2484414 – (CVE-2026-11610) CVE-2026-11610 389-ds-base: 389-ds-base: Heap buffer overflow in sasl_io_recv() via padded SASL UNBIND 查看完整文章 issue-tracking x_refsource_REDHAT
-
-
-
-
-
🔗 RHSA-2026:36641 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
-
-
-
-
-
🔗 RHSA-2026:36205 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
-
-
🔗 RHSA-2026:36202 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
-
🔗 RHSA-2026:36206 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
-
🔗 RHSA-2026:36204 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
-
-
🔗 RHSA-2026:36670 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
IV. Related Vulnerabilities
V. Comments for CVE-2026-11610
暂无评论