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CVE-2021-47148— octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context()

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，该漏洞源于存在缓冲区溢出。

CVSS 7.8 · High EPSS 0.24% · P13

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 81a4362016e7d8b17031fe1aa43cdb58a7f0f163< 389146bc6d2bbb20714d06624b74856320ce40f7 affected
81a4362016e7d8b17031fe1aa43cdb58a7f0f163< e5cc361e21648b75f935f9571d4003aaee480214 affected
5.12 affected
< 5.12 unaffected
5.12.9≤ 5.12.* unaffected
5.13≤ * unaffected
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I. Basic Information for CVE-2021-47148

Vulnerability Information
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Vulnerability Title
octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context() This function is called from ethtool_set_rxfh() and "*rss_context" comes from the user. Add some bounds checking to prevent memory corruption.
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，该漏洞源于存在缓冲区溢出。
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 81a4362016e7d8b17031fe1aa43cdb58a7f0f163 ~ 389146bc6d2bbb20714d06624b74856320ce40f7 -
Linux Linux 5.12 -

II. Public POCs for CVE-2021-47148

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III. Intelligence Information for CVE-2021-47148

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Other References for CVE-2021-47148 (2)

Same Patch Batch · Linux · 2024-03-25 · 40 CVEs total

CVE-2021-47137 9.8 CRITICAL net: lantiq: fix memory corruption in RX ring
CVE-2021-47168 9.8 CRITICAL NFS: fix an incorrect limit in filelayout_decode_layout()
CVE-2021-47162 9.8 CRITICAL tipc: skb_linearize the head skb when reassembling msgs
CVE-2021-47136 8.6 HIGH net: zero-initialize tc skb extension on allocation
CVE-2021-47160 8.1 HIGH net: dsa: mt7530: fix VLAN traffic leaks
CVE-2021-47158 7.8 HIGH net: dsa: sja1105: add error handling in sja1105_setup()
CVE-2021-47153 7.8 HIGH i2c: i801: Don't generate an interrupt on bus reset
CVE-2021-47152 7.8 HIGH mptcp: fix data stream corruption
CVE-2021-47159 7.8 HIGH net: dsa: fix a crash if ->get_sset_count() fails
CVE-2021-47163 7.8 HIGH tipc: wait and exit until all work queues are done
CVE-2021-47175 7.8 HIGH net/sched: fq_pie: fix OOB access in the traffic path
CVE-2021-47142 7.8 HIGH drm/amdgpu: Fix a use-after-free
CVE-2021-47178 7.5 HIGH scsi: target: core: Avoid smp_processor_id() in preemptible code
CVE-2021-47179 7.5 HIGH NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
CVE-2021-47169 serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'
CVE-2021-47180 NFC: nci: fix memory leak in nci_allocate_device
CVE-2021-47167 NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
CVE-2021-47170 USB: usbfs: Don't WARN about excessively large memory allocations
CVE-2021-47171 net: usb: fix memory leak in smsc75xx_bind
CVE-2021-47172 iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47148

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