01 Record
CVE-2009-4146
The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1, 7.2, and 8.0 does not clear the LD_PRELOAD environment variable, which allows local users to gain
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1, 7.2, and 8.0 does not clear the LD_PRELOAD environment variable, which allows local users to gain
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.90% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.8% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2009-12-02 18:00Z16 YR AGO
- Last updated
- 2024-08-07 06:54Z2 YR AGO
- Reserved
- 2009-12-01
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 5773d3d638aae5a4f8487a44d0f2f3ef2f27ee95681e7ee068d90e319ce83784
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.securityfocus.com37154http://www.securityfocus.com/bid/37154
- www.securityfocus.com20091201 Upcoming FreeBSD Security Advisoryhttp://www.securityfocus.com/archive/1/508146/100/0/threaded
- secunia.com37517http://secunia.com/advisories/37517
- people.freebsd.orghttp://people.freebsd.org/~cperciva/rtld.patch
- www.securityfocus.com20091130 ** FreeBSD local r00t zerodayhttp://www.securityfocus.com/archive/1/508142/100/0/threaded
- www.securitytracker.com1023250http://www.securitytracker.com/id?1023250
- www.securityfocus.com20091201 Re: ** FreeBSD local r00t zerodayhttp://www.securityfocus.com/archive/1/508168/100/0/threaded
- packetstormsecurity.comhttp://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html