Information disclosure in Glibc - CVE-2019-1010024

 

Information disclosure in Glibc - CVE-2019-1010024

Published: September 21, 2019 / Updated: April 7, 2020


Vulnerability identifier: #VU21240
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-1010024
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: GNU
Affected software:
Glibc

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the way glibc creates threads with pthread_create and then works with internal cache to find already mmaped regions. A local user can create a specially crafted application that can abuse this feature and bypass implemented ASLR protection.


How to mitigate CVE-2019-1010024

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources