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CVE-2023-6915— Kernel: null pointer dereference vulnerability in ida_free in lib/idr.c

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 8
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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lib/idr.c 中的 ida_free 发现空指针取消引用问题，函数返回时缺少检查，导致拒绝服务。

CVSS 6.2 · Medium EPSS 0.26% · P16
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I. Basic Information for CVE-2023-6915

Vulnerability Information
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Vulnerability Title
Kernel: null pointer dereference vulnerability in ida_free in lib/idr.c
Source: CVE Program / CVE List V5
Vulnerability Description
A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
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lib/idr.c 中的 ida_free 发现空指针取消引用问题，函数返回时缺少检查，导致拒绝服务。
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 8 0:4.18.0-553.rt7.342.el8_10 ~ * cpe:/a:redhat:enterprise_linux:8::realtime
Red Hat Red Hat Enterprise Linux 8 0:4.18.0-553.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 9 0:5.14.0-427.13.1.el9_4 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Enterprise Linux 9 0:5.14.0-427.13.1.el9_4 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
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 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2023-6915

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III. Intelligence Information for CVE-2023-6915

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Patches & Fixes for CVE-2023-6915 (1)

Vendor Advisories for CVE-2023-6915 (5)

Mailing List Discussions for CVE-2023-6915 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-6915

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