CVE-2023-6246 PoC — Glibc: heap-based buffer overflow in __vsyslog_internal()

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/code/cves/2023/CVE-2023-6246.yaml

Associated Vulnerability

Title:Glibc: heap-based buffer overflow in __vsyslog_internal() (CVE-2023-6246)
Description:A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.

Description

A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.

File Snapshot


 id: CVE-2023-6246

info:
  name: glibc's syslog - Local Privilege Escalation
  author: gy741
  sever

...

Shenlong Bot has cached this for you

Remarks

1. It is advised to access via the original source first.

2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.

View subscription plans →

Goal Reached Thanks to every supporter — we hit 100%!