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I. Basic Information for CVE-2023-42753
Vulnerability Information
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Vulnerability Title
Kernel: netfilter: potential slab-out-of-bound access due to integer underflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
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基金会的开源操作系统Linux所使用的内核。 Linux kernel 6.6 版本存在缓冲区错误漏洞，该漏洞源于netfilter 子系统中发现了一个数组索引， 丢失的宏可能会导致h->nets数组偏移量计算错误，从而为攻击者提供了任意增加或减少内存缓冲区越界的原语，导致系统崩溃或权限提升。
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 7 0:3.10.0-1160.108.1.rt56.1259.el7 ~ * cpe:/a:redhat:rhel_extras_rt:7
Red HatRed Hat Enterprise Linux 7 0:3.10.0-1160.108.1.el7 ~ * cpe:/o:redhat:enterprise_linux:7::client
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7::server
Red HatRed Hat Enterprise Linux 7.7 Advanced Update Support 0:3.10.0-1062.85.1.el7 ~ * cpe:/o:redhat:rhel_aus:7.7::server
Red HatRed Hat Enterprise Linux 8 0:4.18.0-513.11.1.rt7.313.el8_9 ~ * cpe:/a:redhat:enterprise_linux:8::realtime
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8 0:4.18.0-513.11.1.el8_9 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 0:4.18.0-193.120.1.el8_2 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service 0:4.18.0-193.120.1.rt13.171.el8_2 ~ * cpe:/a:redhat:rhel_tus:8.2::nfv
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service 0:4.18.0-193.120.1.el8_2 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions-cpe:/o:redhat:rhel_e4s:8.2::baseos
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions 0:4.18.0-193.120.1.el8_2 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:4.18.0-305.120.1.el8_4 ~ * cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service 0:4.18.0-305.120.1.rt7.196.el8_4 ~ * cpe:/a:redhat:rhel_tus:8.4::realtime
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service 0:4.18.0-305.120.1.el8_4 ~ * cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:4.18.0-305.120.1.el8_4 ~ * cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions-cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support-cpe:/o:redhat:rhel_eus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support 0:4.18.0-372.87.1.el8_6 ~ * cpe:/a:redhat:rhel_eus:8.6::crb
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 0:4.18.0-477.36.1.el8_8 ~ * cpe:/o:redhat:rhel_eus:8.8::baseos
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support-cpe:/o:redhat:rhel_eus:8.8::baseos
Red HatRed Hat Enterprise Linux 9 0:5.14.0-362.18.1.el9_3 ~ * cpe:/a:redhat:enterprise_linux:9::realtime
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9 0:5.14.0-362.18.1.el9_3 ~ * cpe:/a:redhat:enterprise_linux:9::realtime
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 0:5.14.0-70.80.1.el9_0 ~ * cpe:/o:redhat:rhel_eus:9.0::baseos
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 0:5.14.0-70.80.1.rt21.151.el9_0 ~ * cpe:/a:redhat:rhel_eus:9.0::nfv
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support-cpe:/o:redhat:rhel_eus:9.0::baseos
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:5.14.0-284.40.1.el9_2 ~ * cpe:/a:redhat:rhel_eus:9.2::crb
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:5.14.0-284.40.1.rt14.325.el9_2 ~ * cpe:/a:redhat:rhel_eus:9.2::nfv
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support-cpe:/o:redhat:rhel_eus:9.2::baseos
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 8 0:4.18.0-372.87.1.el8_6 ~ * cpe:/a:redhat:rhel_eus:8.6::crb
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9
II. Public POCs for CVE-2023-42753
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III. Intelligence Information for CVE-2023-42753
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IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 7
Same vendor: Red Hat
Same weakness: CWE-787
V. Comments for CVE-2023-42753

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