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CVE-2024-50281— KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation

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，该漏洞源于空指针取消引用。

CVSS 7.8 · High EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 0e28bf61a5f9ab30be3f3b4eafb8d097e39446bb< c75e0272289eae18c5379518a9c56ef31d65cc7d affected
0e28bf61a5f9ab30be3f3b4eafb8d097e39446bb< 04de7589e0a95167d803ecadd115235ba2c14997 affected
9e3b266afcfe4294e84496f50f006f029d3100db affected
6.10.7< 6.11 affected
6.11 affected
< 6.11 unaffected
6.11.8≤ 6.11.* unaffected
6.12≤ * unaffected
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I. Basic Information for CVE-2024-50281

Vulnerability Information
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Vulnerability Title
KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation When sealing or unsealing a key blob we currently do not wait for the AEAD cipher operation to finish and simply return after submitting the request. If there is some load on the system we can exit before the cipher operation is done and the buffer we read from/write to is already removed from the stack. This will e.g. result in NULL pointer dereference errors in the DCP driver during blob creation. Fix this by waiting for the AEAD cipher operation to finish before resuming the seal and unseal calls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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，该漏洞源于空指针取消引用。
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 0e28bf61a5f9ab30be3f3b4eafb8d097e39446bb ~ c75e0272289eae18c5379518a9c56ef31d65cc7d -
Linux Linux 6.11 -

II. Public POCs for CVE-2024-50281

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III. Intelligence Information for CVE-2024-50281

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Patches & Fixes for CVE-2024-50281 (2)

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-2024-50283 9.8 CRITICAL ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp
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-2024-50293 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
CVE-2024-50294 7.8 HIGH rxrpc: Fix missing locking causing hanging calls
CVE-2023-52921 7.8 HIGH drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()
CVE-2024-50288 7.8 HIGH media: vivid: fix buffer overwrite when using > 32 buffers
CVE-2024-53063 7.8 HIGH media: dvbdev: prevent the risk of out of memory access
CVE-2024-53088 7.8 HIGH i40e: fix race condition by adding filter's intermediate sync state
CVE-2024-53080 7.8 HIGH drm/panthor: Lock XArray when getting entries for the VM
CVE-2024-53079 7.8 HIGH mm/thp: fix deferred split unqueue naming and locking
CVE-2024-53076 7.8 HIGH iio: gts-helper: Fix memory leaks for the error path of iio_gts_build_avail_scale_table()
CVE-2024-53044 7.8 HIGH net/sched: sch_api: fix xa_insert() error path in tcf_block_get_ext()
CVE-2024-50301 7.8 HIGH security/keys: fix slab-out-of-bounds in key_task_permission
CVE-2024-50300 7.8 HIGH regulator: rtq2208: Fix uninitialized use of regulator_config

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-2024-50281

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