CVE-2023-5717

HIGH

Linux Kernel 3.2.95-3.2.99 - Heap Out-of-bounds Write in Performance Events Component

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-5717. PoCs published by uthrasri.

AI-analyzed exploit summary The provided code is a truncated snippet from the Linux kernel's performance events subsystem, specifically focusing on task and CPU function calls. It does not contain any exploit logic or proof-of-concept code for CVE-2023-5717.

Description

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.

Exploits (1)

nomisec STUB
by uthrasri · poc
https://github.com/uthrasri/CVE-2023-5717

The provided code is a truncated snippet from the Linux kernel's performance events subsystem, specifically focusing on task and CPU function calls. It does not contain any exploit logic or proof-of-concept code for CVE-2023-5717.

Classification
Stub 90%
Attack Type
Other
Complexity
Complex
Reliability
Theoretical
Target: Linux kernel (version not specified)
No auth needed
Prerequisites: Access to kernel source code or module insertion capabilities
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 7.8
EPSS 0.0086
EPSS Percentile 53.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-787
Status published
Products (2)
linux/linux_kernel 6.6 rc1 (6 CPE variants)
linux/linux_kernel 3.2.95 - 3.3
Published Oct 25, 2023
Tracked Since Feb 18, 2026