CVE-2011-4089 json
The bzexe command in bzip2 1.0.5 and earlier generates compressed executables that do not properly handle temporary files during extraction…
published 2014-04-16 12 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4040
- cvss
- 4.6
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 1
- Exploit-DB
Summary
The bzexe command in bzip2 1.0.5 and earlier generates compressed executables that do not properly handle temporary files during extraction, which allows local users to execute arbitrary code by precreating a temporary directory.
Patch / fix
- bzip2 Debian 14, Debian 13, Debian 12 1.0.6-1
debian advisories DEBIAN-CVE-2011-4089
Timeline
- First public exploit (EDB-18147)
- Published
Exploit prediction
1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-18147 bzexe (bzip2) - Race Condition local, 2011-11-23
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-264 Permissions, Privileges, and Access Controls
References
-
ubuntu.com
/usn/USN-1308-1
vendor-advisory, patch
-
bugs.debian.org
/cgi-bin/bugreport.cgi?bug=632862
patch
-
exploit-db.com
/exploits/18147
exploit
-
seclists.org
/fulldisclosure/2011/Oct/804
mailing-list
-
openwall.com
/lists/oss-security/2011/10/28/16
mailing-list
Sources
- CVE List CVE-2011-4089
- NVD CVE-2011-4089
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.