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CVE-2023-32258— Session race condition remote code execution vulnerability

Quick assessment

Affected
n/a kernel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于SMB2_LOGOFF 和 SMB2_CLOSE命令处理存在缺陷，在对对象执行操作时缺乏正确的锁定，攻击者利用该漏洞可以在内核上下文中执行代码。

CVSS 8.1 · High EPSS 2.51% · P84

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2023-32258

Vulnerability Information
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Vulnerability Title
Session race condition remote code execution vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_LOGOFF and SMB2_CLOSE commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于SMB2_LOGOFF 和 SMB2_CLOSE命令处理存在缺陷，在对对象执行操作时缺乏正确的锁定，攻击者利用该漏洞可以在内核上下文中执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- kernel 6.4-rc1 -
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 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 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Fedora Fedora - -

II. Public POCs for CVE-2023-32258

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III. Intelligence Information for CVE-2023-32258

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Vendor Advisories for CVE-2023-32258 (4)

Same Patch Batch · n/a · 2023-07-24 · 18 CVEs total

CVE-2023-32257 8.1 HIGH Session race condition remote code execution vulnerability
CVE-2023-32248 7.5 HIGH Tree connection null pointer dereference denial-of-service vulnerability
CVE-2023-32252 7.5 HIGH Session null pointer dereference denial-of-service vulnerability
CVE-2023-32247 7.5 HIGH Session setup memory exhaustion denial-of-service vulnerability
CVE-2023-3863 6.4 MEDIUM Use-after-free in nfc_llcp_find_loca in net/nfc/llcp_core.c
CVE-2023-2860 4.4 MEDIUM Out-of-bounds read when setting hmac data
CVE-2023-3748 3.5 LOW Inifinite loop in babld message parsing may cause dos
CVE-2023-1386 3.3 LOW Qemu: 9pfs: suid/sgid bits not dropped on file write
CVE-2021-39421 SeedDMS 跨站脚本漏洞
CVE-2022-30280 Nokia NetAct 跨站请求伪造漏洞
CVE-2023-26077 Atera Agent 安全漏洞
CVE-2023-37613 Assembly Software Trialworks 跨站脚本漏洞
CVE-2023-26078 Atera Agent 安全漏洞
CVE-2022-28863 Nokia NetAct 代码问题漏洞
CVE-2022-28864 Nokia NetAct 安全漏洞
CVE-2022-28865 Nokia NetAct 跨站脚本漏洞
CVE-2022-28867 Nokia NetAct 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: kernel
Same vendor: n/a
Same weakness: CWE-362

V. Comments for CVE-2023-32258

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