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CVE-2023-4389— Kernel: btrfs: double free in btrfs_get_root_ref()

Quick assessment

Affected
n/a Kernel
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，该漏洞源于引用计数双减，可能允许具有用户权限的本地攻击者使系统崩溃或者导致内部内核信息泄露。

CVSS 7.0 · High EPSS 0.25% · P15
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I. Basic Information for CVE-2023-4389

Vulnerability Information
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Vulnerability Title
Kernel: btrfs: double free in btrfs_get_root_ref()
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
双重释放
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 资源管理错误漏洞
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，该漏洞源于引用计数双减，可能允许具有用户权限的本地攻击者使系统崩溃或者导致内部内核信息泄露。
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
- Kernel 5.18-rc3 -
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
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Fedora Fedora - -

II. Public POCs for CVE-2023-4389

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III. Intelligence Information for CVE-2023-4389

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Vendor Advisories for CVE-2023-4389 (2)

Other References for CVE-2023-4389 (1)

Same Patch Batch · n/a · 2023-08-16 · 9 CVEs total

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CVE-2023-39975 MIT Kerberos 资源管理错误漏洞
CVE-2023-39115 Campcodes Online Matrimonial Website System 代码问题漏洞
CVE-2023-38904 Netlify CMS 跨站脚本漏洞
CVE-2023-33663 PrestaShop SQL注入漏洞
CVE-2023-39846 Konga 授权问题漏洞
CVE-2023-38894 Tree Kit 安全漏洞

IV. Related Vulnerabilities

Same product: Kernel
Same vendor: n/a
Same weakness: CWE-415

V. Comments for CVE-2023-4389

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