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CVE-2021-47401— ipack: ipoctal: fix stack information leak

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ipack:ipoctal模块存在堆栈信息泄漏问题。

CVSS 7.1 · High EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ba4dc61fe8c545a5d6a68b63616776556b771f51< acb96e782bad427ca4bb1bd94af660acd1462380 affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< 741ea2670e021350e54f491106bdaa22dc50e6a0 affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< 2725925982dc96a78069cd118ea3d66759bfdad7 affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< 829f13d6079cf7a2465522f39acb43033e9b320d affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< 8657158a3b68c85234e6da3d8eae33d6183588b7 affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< 5f6a309a699675680df15d9b6d389114515b4426 affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< 0a9c36a2e06a249acbed64e8e0b84637c2ad7575 affected
ba4dc61fe8c545a5d6a68b63616776556b771f51< a89936cce87d60766a75732a9e7e25c51164f47c affected
… +10 more rows
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I. Basic Information for CVE-2021-47401

Vulnerability Information
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Vulnerability Title
ipack: ipoctal: fix stack information leak
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after registering the driver and must specifically not be allocated on the stack to avoid leaking information to user space (or triggering an oops). Drivers should not try to encode topology information in the tty device name but this one snuck in through staging without anyone noticing and another driver has since copied this malpractice. Fixing the ABI is a separate issue, but this at least plugs the security hole.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/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ipack:ipoctal模块存在堆栈信息泄漏问题。
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 ba4dc61fe8c545a5d6a68b63616776556b771f51 ~ acb96e782bad427ca4bb1bd94af660acd1462380 -
Linux Linux 3.5 -

II. Public POCs for CVE-2021-47401

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III. Intelligence Information for CVE-2021-47401

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Other References for CVE-2021-47401 (6)

Same Patch Batch · Linux · 2024-05-21 · 361 CVEs total

CVE-2021-47328 9.8 CRITICAL scsi: iscsi: Fix conn use after free during resets
CVE-2023-52732 9.8 CRITICAL ceph: blocklist the kclient when receiving corrupted snap trace
CVE-2023-52741 9.8 CRITICAL cifs: Fix use-after-free in rdata->read_into_pages()
CVE-2021-47427 9.8 CRITICAL scsi: iscsi: Fix iscsi_task use after free
CVE-2021-47232 9.8 CRITICAL can: j1939: fix Use-after-Free, hold skb ref while in use
CVE-2023-52755 9.8 CRITICAL ksmbd: fix slab out of bounds write in smb_inherit_dacl()
CVE-2021-47378 9.8 CRITICAL nvme-rdma: destroy cm id before destroy qp to avoid use after free
CVE-2021-47308 8.8 HIGH scsi: libfc: Fix array index out of bound exception
CVE-2023-52846 8.8 HIGH hsr: Prevent use after free in prp_create_tagged_frame()
CVE-2023-52798 8.8 HIGH wifi: ath11k: fix dfs radar event locking
CVE-2023-52769 8.8 HIGH wifi: ath12k: fix htt mlo-offset event locking
CVE-2023-52776 8.8 HIGH wifi: ath12k: fix dfs-radar and temperature event locking
CVE-2023-52801 8.8 HIGH iommufd: Fix missing update of domains_itree after splitting iopt_area
CVE-2023-52790 8.8 HIGH swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC
CVE-2021-47390 8.8 HIGH KVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect()
CVE-2021-47388 8.8 HIGH mac80211: fix use-after-free in CCMP/GCMP RX
CVE-2021-47352 8.4 HIGH virtio-net: Add validation for used length
CVE-2021-47240 8.4 HIGH net: qrtr: fix OOB Read in qrtr_endpoint_post
CVE-2023-52829 8.4 HIGH wifi: ath12k: fix possible out-of-bound write in ath12k_wmi_ext_hal_reg_caps()
CVE-2021-47245 8.2 HIGH netfilter: synproxy: Fix out of bounds when parsing TCP options

Showing top 20 of 361 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47401

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