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
Published Apr 16, 2014
4.6
MEDIUMCVSS 2.0
EPSS 1.04%
Description
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.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of bzip2 as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include the bzexe executable.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.04% (0.01045) | 62.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.04% (0.01045) | 59.55th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.22% (0.00222) | 42.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 15.06th | v3 (v2023.03.01) |
| May 27, 2024 | 0.04% (0.00044) | 12.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.51% (0.02515) | 81.87th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.51% (0.02515) | 80.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.51% (0.02515) | 58.60th | v2 (v2022.01.01) |
References (8)
- http://seclists.org/fulldisclosure/2011/Oct/804 mailing-listx_refsource_FULLDISC
- http://www.exploit-db.com/exploits/18147 exploitx_refsource_EXPLOIT-DB
- http://www.openwall.com/lists/oss-security/2011/10/28/16 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1308-1 vendor-advisoryx_refsource_UBUNTUPatch
- https://access.redhat.com/security/cve/CVE-2011-4089 Vendor Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632862 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2011-4089
- https://www.cve.org/CVERecord?id=CVE-2011-4089
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2011/Oct/804 | mailing-listx_refsource_FULLDISC | |
| http://www.exploit-db.com/exploits/18147 | exploitx_refsource_EXPLOIT-DB | |
| http://www.openwall.com/lists/oss-security/2011/10/28/16 | mailing-listx_refsource_MLIST | |
| http://www.ubuntu.com/usn/USN-1308-1 | vendor-advisoryx_refsource_UBUNTUPatch | |
| https://access.redhat.com/security/cve/CVE-2011-4089 | Vendor Advisory | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632862 | x_refsource_CONFIRMPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-4089 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-4089 |
Change history (0)
No recorded changes yet.