Permissions, Privileges, and Access Controls in Glibc - CVE-2019-1010023

 

Permissions, Privileges, and Access Controls in Glibc - CVE-2019-1010023

Published: July 15, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU35721
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-1010023
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GNU
Affected software:
Glibc

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

GNU Libc current is affected by: Re-mapping current loaded libray with malicious ELF file. The impact is: In worst case attacker may evaluate privileges. The component is: libld. The attack vector is: Attacker sends 2 ELF files to victim and asks to run ldd on it. ldd execute code.


How to mitigate CVE-2019-1010023

Install update from vendor's website.

Sources