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CVE-2023-39191— Kernel: ebpf: insufficient stack type checks in dynptr

CVSS 8.2 · High EPSS 0.02% · P4
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I. Basic Information for CVE-2023-39191

Vulnerability Information
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Vulnerability Title
Kernel: ebpf: insufficient stack type checks in dynptr
Source: NVD (National Vulnerability Database)
Vulnerability Description
An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
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存在安全漏洞，该漏洞源于存在不正确的输入验证，允许具有CAP_BPF权限的攻击者升级权限并在内核上下文中执行任意代码。
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 9 0:5.14.0-362.8.1.el9_3 ~ * cpe:/a:redhat:enterprise_linux:9::crb
Red HatRed Hat Enterprise Linux 9 0:5.14.0-362.8.1.el9_3 ~ * cpe:/a:redhat:enterprise_linux:9::crb
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:5.14.0-284.48.1.el9_2 ~ * cpe:/o:redhat:rhel_eus:9.2::baseos
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:5.14.0-284.48.1.rt14.333.el9_2 ~ * cpe:/a:redhat:rhel_eus:9.2::realtime
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support-cpe:/o:redhat:rhel_eus:9.2::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 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2023-39191

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III. Intelligence Information for CVE-2023-39191

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Same Patch Batch · Red Hat · 2023-10-04 · 8 CVEs total

CVE-2023-45867.4 HIGHHotrod-client: hot rod client does not enable hostname validation when using tls that lea
CVE-2023-39717.3 HIGHController: html injection in custom login info
CVE-2023-42377.3 HIGHPlatform: ec2_key module prints out the private key directly to the standard output
CVE-2023-43806.3 MEDIUMPlatform: token exposed at importing project
CVE-2023-34286.2 MEDIUMImagemagick: heap-buffer-overflow in coders/tiff.c
CVE-2023-35765.5 MEDIUMLibtiff: memory leak in tiffcrop.c
CVE-2023-24225.5 MEDIUMKeycloak: oauth client impersonation

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 9
Same vendor: Red Hat
Same weakness: CWE-20

V. Comments for CVE-2023-39191

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