Input validation error in GNU C Library (glibc) - CVE-2000-0959
Published: October 10, 2017 / Updated: June 3, 2025
Vulnerability identifier: #VU110135
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2000-0959
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to corrupt data.
glibc2 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environmental variables when a program is spawned from a setuid program, which could allow local users to overwrite files via a symlink attack.
Affected software
GNU C Library (glibc)
How to mitigate CVE-2000-0959
Install update from vendor's website.