CVE-2026-11610— 389-ds-base SASL unbind堆缓冲区溢出漏洞
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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
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Red Hat Directory Server 11 | - | cpe:/a:redhat:directory_server:11 | |
| 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 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
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 (1)
CVE-2026-11610 其他参考 (1)
同批安全公告 · Red Hat · 2026-07-07 · 共 4 条
| CVE-2026-14474 | 8.8 HIGH | sssd sudo LDAP提供程序默认搜索整个目录树，导致权限提升漏洞 |
| CVE-2026-14476 | 8.0 HIGH | Sssd GPO缓存路径遍历漏洞 |
| CVE-2026-58384 | 7.3 HIGH | GIMP read_rle_channel() 整数溢出漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-11610
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