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CVE-2024-50283— ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp

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，该漏洞源于内存释放后重用。

CVSS 9.8 · Critical EPSS 0.62% · P49

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf< cb645064e0811053c94e86677f2e58ed29359d62 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< f7557bbca40d4ca8bb1c6c940ac6c95078bd0827 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< c6cdc08c25a868a08068dfc319fa9fce982b8e7f affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 1b6ad475d4ed577d34e0157eb507be00c588bf5c affected
0626e6641f6b467447c81dd7678a69c66f7746cf< b8fc56fbca7482c1e5c0e3351c6ae78982e25ada affected
5.15 affected
< 5.15 unaffected
5.15.174≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-50283

Vulnerability Information
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Vulnerability Title
ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp ksmbd_user_session_put should be called under smb3_preauth_hash_rsp(). It will avoid freeing session before calling smb3_preauth_hash_rsp().
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，该漏洞源于内存释放后重用。
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 ~ cb645064e0811053c94e86677f2e58ed29359d62 -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-50283

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III. Intelligence Information for CVE-2024-50283

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Patches & Fixes for CVE-2024-50283 (4)

Same Patch Batch · Linux · 2024-11-19 · 88 CVEs total

CVE-2024-50286 9.8 CRITICAL ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create
CVE-2024-50276 9.8 CRITICAL net: vertexcom: mse102x: Fix possible double free of TX skb
CVE-2024-53066 9.8 CRITICAL nfs: Fix KMSAN warning in decode_getfattr_attrs()
CVE-2024-53058 9.4 CRITICAL net: stmmac: TSO: Fix unbalanced DMA map/unmap for non-paged SKB data
CVE-2024-53082 8.4 HIGH virtio_net: Add hash_key_length check
CVE-2024-50299 8.2 HIGH sctp: properly validate chunk size in sctp_sf_ootb()
CVE-2024-50300 7.8 HIGH regulator: rtq2208: Fix uninitialized use of regulator_config
CVE-2024-53063 7.8 HIGH media: dvbdev: prevent the risk of out of memory access
CVE-2024-50301 7.8 HIGH security/keys: fix slab-out-of-bounds in key_task_permission
CVE-2024-53044 7.8 HIGH net/sched: sch_api: fix xa_insert() error path in tcf_block_get_ext()
CVE-2024-53057 7.8 HIGH net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT
CVE-2024-53079 7.8 HIGH mm/thp: fix deferred split unqueue naming and locking
CVE-2024-53080 7.8 HIGH drm/panthor: Lock XArray when getting entries for the VM
CVE-2024-53088 7.8 HIGH i40e: fix race condition by adding filter's intermediate sync state
CVE-2024-53076 7.8 HIGH iio: gts-helper: Fix memory leaks for the error path of iio_gts_build_avail_scale_table()
CVE-2024-50288 7.8 HIGH media: vivid: fix buffer overwrite when using > 32 buffers
CVE-2023-52921 7.8 HIGH drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()
CVE-2024-50294 7.8 HIGH rxrpc: Fix missing locking causing hanging calls
CVE-2024-50293 7.8 HIGH net/smc: do not leave a dangling sk pointer in __smc_create()
CVE-2024-50291 7.8 HIGH media: dvb-core: add missing buffer index check

Showing top 20 of 88 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50283

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