All vulnerabilities

Servers and applications

CVE-2000-0824

The unsetenv function in glibc 2.1.1 does not properly unset an environmental variable if the variable is provided twice to a program, which could allow local users to execute arbitrary commands in setuid programs by specifying their own duplicate environmental variables such as LD_PRELOAD or LD_LIBRARY_PATH.

Severity
High 7.2
Published
14 Nov 2000
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.2% in the next 30 daysHigher than 69% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Needs local access · No login needed
Attacker can
Read data · Change data · Take it down
CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C
Sources
NVD

Affected software

SoftwareAffected versions
GNU C LibraryServers and applications · cpe:a:gnu:glibc
  • Version 2.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2000-0824
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2000-0824