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CVE-2021-26931

Quick assessment

Affected
n/a n/a
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 2.6.39 through 5.10.16 存在安全漏洞，攻击者可利用该漏洞导致内核崩溃。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.54% · P43
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I. Basic Information for CVE-2021-26931

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen. Block, net, and SCSI backends consider certain errors a plain bug, deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions), it isn't correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode, though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 2.6.39 through 5.10.16 存在安全漏洞，攻击者可利用该漏洞导致内核崩溃。
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
- n/a n/a -

II. Public POCs for CVE-2021-26931

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III. Intelligence Information for CVE-2021-26931

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Patches & Fixes for CVE-2021-26931 (3)

Vendor Advisories for CVE-2021-26931 (1)

Mailing List Discussions for CVE-2021-26931 (4)

Other References for CVE-2021-26931 (1)

Same Patch Batch · n/a · 2021-02-17 · 87 CVEs total

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CVE-2020-24458 Intel PROSet Wireless 信息泄露漏洞
CVE-2020-24480 Intel XTU 安全漏洞
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CVE-2020-24482 Intel 7360 Cell Modem 缓冲区错误漏洞
CVE-2020-24491 Intel 10th Generation Intel Core Processor 信息泄露漏洞
CVE-2020-24500 Intel Ethernet Controllers 缓冲区错误漏洞
CVE-2020-24505 Intel Ethernet Controllers 输入验证错误漏洞

Showing top 20 of 87 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

V. Comments for CVE-2021-26931

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