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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,…
High7.2EPSS 1.2%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 1.2% · top 31% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (15)
- glibc-ld-unsetenv(5173) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 19990917 A few bugs... (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20000924 glibc locale security problem (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 20000906 [slackware-security]: glibc 2.1.3 vulnerabilities patched (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- RHSA-2000:057 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- MDKSA-2000:045 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
- 20000902 Conectiva Linux Security Announcement - glibc (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 1639 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- TLSA2000020-1 (opens in a new tab)vendor-advisoryx_refsource_TURBOx_transferred
- 20000902 glibc: local root exploit (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20000831 glibc unsetenv bug (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20000905 Conectiva Linux Security Announcement - glibc (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 648 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- CSSA-2000-028.0 (opens in a new tab)vendor-advisoryx_refsource_CALDERAx_transferred
- MDKSA-2000:040 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .