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CVE-2024-26594— ksmbd: validate mech token in session setup

Quick assessment

Affected
Linux Linux
Exploitation
High exploitation probability; assess promptly
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，该漏洞源于如果客户端在会话设置请求中发送无效的机械令牌，ksmbd 会进行验证，如果无效则发出错误。

CVSS 9.1 · Critical EPSS 51.25% · P99

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf< dd1de9268745f0eac83a430db7afc32cbd62e84b affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 6eb8015492bcc84e40646390e50a862b2c0529c9 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< a2b21ef1ea4cf632d19b3a7cc4d4245b8e63202a affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 5e6dfec95833edc54c48605a98365a7325e5541e affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 92e470163d96df8db6c4fa0f484e4a229edb903d 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-2024-26594

Vulnerability Information
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Vulnerability Title
ksmbd: validate mech token in session setup
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate mech token in session setup If client send invalid mech token in session setup request, ksmbd validate and make the error if it is invalid.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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，该漏洞源于如果客户端在会话设置请求中发送无效的机械令牌，ksmbd 会进行验证，如果无效则发出错误。
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 0626e6641f6b467447c81dd7678a69c66f7746cf ~ dd1de9268745f0eac83a430db7afc32cbd62e84b -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-26594

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III. Intelligence Information for CVE-2024-26594

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Mailing List Discussions for CVE-2024-26594 (1)

Other References for CVE-2024-26594 (5)

Same Patch Batch · Linux · 2024-02-23 · 19 CVEs total

CVE-2024-26598 8.8 HIGH KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache
CVE-2024-26597 7.8 HIGH net: qualcomm: rmnet: fix global oob in rmnet_policy
CVE-2023-52461 7.8 HIGH drm/sched: Fix bounds limiting when given a malformed entity
CVE-2023-52454 7.5 HIGH nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length
CVE-2023-52453 7.1 HIGH hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume
CVE-2024-26593 i2c: i801: Fix block process call transactions
CVE-2023-52455 iommu: Don't reserve 0-length IOVA region
CVE-2023-52456 serial: imx: fix tx statemachine deadlock
CVE-2023-52458 block: add check that partition length needs to be aligned with block size
CVE-2023-52457 serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed
CVE-2023-52459 media: v4l: async: Fix duplicated list deletion
CVE-2023-52460 drm/amd/display: Fix NULL pointer dereference at hibernate
CVE-2023-52462 bpf: fix check for attempt to corrupt spilled pointer
CVE-2023-52464 EDAC/thunderx: Fix possible out-of-bounds string access
CVE-2023-52463 efivarfs: force RO when remounting if SetVariable is not supported
CVE-2024-26596 net: dsa: fix netdev_priv() dereference before check on non-DSA netdevice events
CVE-2024-26595 mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path
CVE-2024-26599 pwm: Fix out-of-bounds access in of_pwm_single_xlate()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26594

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