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CVE-2023-3772— Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()

CVSS 5.5 · Medium EPSS 0.01% · P1
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I. Basic Information for CVE-2023-3772

Vulnerability Information
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Vulnerability Title
Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.
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 XFRM 子系统存在一个漏洞，该漏洞允许具有CAP_NET_ADMIN特权的恶意用户在xfrm_update_ae_params()函数中触发空指针取消引用，导致可能的内核崩溃和拒绝服务攻击。
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 0:4.18.0-513.5.1.rt7.307.el8_9 ~ * cpe:/a:redhat:enterprise_linux:8::realtime
Red HatRed Hat Enterprise Linux 8 0:4.18.0-513.5.1.el8_9 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support 0:4.18.0-372.87.1.el8_6 ~ * cpe:/o:redhat:rhel_eus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 0:4.18.0-477.43.1.el8_8 ~ * cpe:/a:redhat:rhel_eus:8.8::crb
Red HatRed Hat Enterprise Linux 9 0:5.14.0-362.8.1.el9_3 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9 0:5.14.0-362.8.1.el9_3 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 8 0:4.18.0-372.87.1.el8_6 ~ * cpe:/o:redhat:rhel_eus:8.6::baseos
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-2023-3772

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III. Intelligence Information for CVE-2023-3772

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Same Patch Batch · Red Hat · 2023-07-25 · 3 CVEs total

CVE-2023-37735.5 MEDIUMKernel: xfrm: out-of-bounds read of xfrma_mtimer_thresh nlattr
CVE-2023-36374.3 MEDIUMOpenstack-neutron: unrestricted creation of security groups (fix for cve-2022-3277)

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 8
Same vendor: Red Hat
Same weakness: CWE-476

V. Comments for CVE-2023-3772

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