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CVE-2024-26592— ksmbd: fix UAF issue in ksmbd_tcp_new_connection()

Quick assessment

Affected
Linux Linux
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ksmbd_tcp_new_connection()中存在内存释放后重用问题。

CVSS 9.8 · Critical EPSS 0.97% · P61

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux a848c4f15ab6d5d405dbee7de5da71839b2bf35e< 999daf367b924fdf14e9d83e034ee0f86bc17ec6 affected
a848c4f15ab6d5d405dbee7de5da71839b2bf35e< 380965e48e9c32ee4263c023e1d830ea7e462ed1 affected
a848c4f15ab6d5d405dbee7de5da71839b2bf35e< 24290ba94cd0136e417283b0dbf8fcdabcf62111 affected
a848c4f15ab6d5d405dbee7de5da71839b2bf35e< 69d54650b751532d1e1613a4fb433e591aeef126 affected
a848c4f15ab6d5d405dbee7de5da71839b2bf35e< 38d20c62903d669693a1869aa68c4dd5674e2544 affected
5.15 affected
< 5.15 unaffected
5.15.149≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-26592

Vulnerability Information
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Vulnerability Title
ksmbd: fix UAF issue in ksmbd_tcp_new_connection()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix UAF issue in ksmbd_tcp_new_connection() The race is between the handling of a new TCP connection and its disconnection. It leads to UAF on `struct tcp_transport` in ksmbd_tcp_new_connection() function.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
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ksmbd_tcp_new_connection()中存在内存释放后重用问题。
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
Linux Linux a848c4f15ab6d5d405dbee7de5da71839b2bf35e ~ 999daf367b924fdf14e9d83e034ee0f86bc17ec6 -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-26592

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III. Intelligence Information for CVE-2024-26592

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Mailing List Discussions for CVE-2024-26592 (1)

Other References for CVE-2024-26592 (4)

Same Patch Batch · Linux · 2024-02-22 · 17 CVEs total

CVE-2023-52447 7.8 HIGH bpf: Defer the free of inner map when necessary
CVE-2023-52444 7.8 HIGH f2fs: fix to avoid dirent corruption
CVE-2024-26589 7.8 HIGH bpf: Reject variable offset alu on PTR_TO_FLOW_KEYS
CVE-2024-26586 7.8 HIGH mlxsw: spectrum_acl_tcam: Fix stack corruption
CVE-2024-26591 bpf: Fix re-attachment branch in bpf_tracing_prog_attach
CVE-2023-52452 bpf: Fix accesses to uninit stack slots
CVE-2023-52451 powerpc/pseries/memhp: Fix access beyond end of drmem array
CVE-2023-52450 perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()
CVE-2023-52449 mtd: Fix gluebi NULL pointer dereference caused by ftl notifier
CVE-2023-52448 gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
CVE-2023-52446 bpf: Fix a race condition between btf_put() and map_free()
CVE-2023-52445 media: pvrusb2: fix use after free on context disconnection
CVE-2024-26590 erofs: fix inconsistent per-file compression format
CVE-2024-26588 LoongArch: BPF: Prevent out-of-bounds memory access
CVE-2024-26587 net: netdevsim: don't try to destroy PHC on VFs
CVE-2023-52443 apparmor: avoid crash when parsed profile name is empty

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26592

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