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CVE-2019-3701

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基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.19.13及之前版本中的net/can/gw.c文件的can_can_gw_rcv存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 5.0 Difficulty: Moderate EPSS 0.70% · P52

Possible ATT&CK Techniques 1 AI

T1546 · Event Triggered Execution
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I. Basic Information for CVE-2019-3701

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames.
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 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.19.13及之前版本中的net/can/gw.c文件的can_can_gw_rcv存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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
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II. Public POCs for CVE-2019-3701

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III. Intelligence Information for CVE-2019-3701

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Patches & Fixes for CVE-2019-3701 (1)

Vendor Advisories for CVE-2019-3701 (5)

Mailing List Discussions for CVE-2019-3701 (4)

Same Patch Batch · n/a · 2019-01-03 · 39 CVEs total

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CVE-2019-3575 Sqla_yaml_fixtures 代码注入漏洞
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CVE-2019-3905 ZOHO ManageEngine ADSelfService Plus 安全漏洞
CVE-2018-16870 wolfSSL 加密问题漏洞
CVE-2018-20662 Poppler 安全漏洞
CVE-2018-17172 多款Fuji Xerox产品命令注入漏洞
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CVE-2018-18893 Jinjava 安全漏洞
CVE-2018-20131 Code42 for Enterprise for Linux 安全漏洞
CVE-2019-3580 OpenRefine 路径遍历漏洞
CVE-2018-18005 VIVOTEK Network Camera系列产品跨站脚本漏洞

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

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