CVE-2023-3773— Kernel: xfrm: out-of-bounds read of xfrma_mtimer_thresh nlattr
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I. Basic Information for CVE-2023-3773
Vulnerability Information
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Vulnerability Title
Kernel: xfrm: out-of-bounds read of xfrma_mtimer_thresh nlattr
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 cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
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 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特权的恶意用户在解析netlink属性时导致XFRMA_MTIMER_THRESH的4字节越界读取，从而导致潜在的敏感堆数据泄漏到用户空间。
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 |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-362.8.1.el9_3 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-362.8.1.el9_3 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
II. Public POCs for CVE-2023-3773
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|---|
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Same Patch Batch · Red Hat · 2023-07-25 · 3 CVEs total
| CVE-2023-3772 | 5.5 MEDIUM | Kernel: xfrm: null pointer dereference in xfrm_update_ae_params() |
| CVE-2023-3637 | 4.3 MEDIUM | Openstack-neutron: unrestricted creation of security groups (fix for cve-2022-3277) |
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V. Comments for CVE-2023-3773
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