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I. Basic Information for CVE-2023-42754
Vulnerability Information
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Vulnerability Title
Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()
Source: NVD (National Vulnerability Database)
Vulnerability Description
A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 代码问题漏洞
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ipv4 堆栈中发现了 NULL 指针取消引用缺陷，可能允许具有 CAP_NET_ADMIN 权限的本地用户导致系统崩溃。
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
VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 8 0:4.18.0-553.rt7.342.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::nfv
Red HatRed Hat Enterprise Linux 8 0:4.18.0-553.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 9 0:5.14.0-427.13.1.el9_4 ~ * cpe:/a:redhat:enterprise_linux:9::realtime
Red HatRed Hat Enterprise Linux 9 0:5.14.0-427.13.1.el9_4 ~ * cpe:/a:redhat:enterprise_linux:9::realtime
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9
II. Public POCs for CVE-2023-42754
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III. Intelligence Information for CVE-2023-42754
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IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 8
Same vendor: Red Hat
Same weakness: CWE-476
V. Comments for CVE-2023-42754

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