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Vulnerability Details : CVE-2009-1086

Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.
Publish Date : 2009-03-25 Last Update Date : 2009-05-15
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflowMemory corruption
CWE ID 399

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-1086 unix
DSA-1795 ldns -- buffer overflow oval:org.mitre.oval:def:7542 unix
DSA-1795-1 ldns - arbitrary code execution oval:org.mitre.oval:def:20245 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2009-1086

# Product Type Vendor Product Version Update Edition Language
1 Application Nlnetlabs Ldns 1.4.0 * * * Version Details Vulnerabilities
2 Application Nlnetlabs Ldns 1.4.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Nlnetlabs Ldns 2

- References For CVE-2009-1086
SUSE SUSE-SR:2009:010
BID 34233 ldns 'rr.c' Remote Buffer Overflow Vulnerability Release Date:2009-05-12
MLIST [oss-security] 20090324 CVE id request: ldns

- Metasploit Modules Related To CVE-2009-1086

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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