PT-2023-9711 · Linux+2 · Linux Kernel+2

Peter Wang · Published 2023-11-06 · Updated 2025-01-14 · CVE-2023-52785

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to a racing condition between the ufshcd mcq abort() function and the Interrupt Service Routine (ISR) in the Linux kernel's UFS (Universal Flash Storage) component. When a command timeout occurs and the completion IRQ is raised simultaneously, ufshcd mcq abort() clears the lprb->cmd pointer, leading to a NULL pointer dereference in the ISR. This can cause a kernel crash, resulting in a denial of service. The error log indicates a device abort task at tag 18 and an inability to handle a kernel NULL pointer dereference at a specific virtual address.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Race Condition

Weakness Enumeration

CWE-476

CWE-413

CWE-362

Related Identifiers

BDU:2024-10220

CVE-2023-52785

Affected Products

Astra Linux

Linux Kernel

Red Os

References · 24

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52785.json · Exploit
• https://osv.dev/vulnerability/BELL-CVE-2023-52785 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-52785 · Vendor Advisory
• https://git.kernel.org/stable/c/8f15a7e3c054d960bbd1521110700450bbf798a1 · Patch
• https://git.kernel.org/stable/c/27900d7119c464b43cd9eac69c85884d17bae240 · Patch
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=158612043 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-10220 · Security Note
• https://git.kernel.org/stable/c/f84d461f33a6b27304d468d9cfb56c0cefdb4ee7 · Patch
• https://osv.dev/vulnerability/CVE-2023-52785 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-52785 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-52785 · Security Note
• https://ubuntu.com/security/CVE-2023-52785 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-52785 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52785 · Security Note
• https://docs.bell-sw.com/security/cves/CVE-2023-52785 · Note