CVE-2009-2958
Dnsmasq < 2.50 - Heap Overflow / Null Pointer Dereference
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.
La función tftp_request en tftp.c en dnsmasq en versiones anteriores a la 2.50, cuando se usa --enable-tftp, permite a atacantes remotos provocar una denegación de servicio (referencia a un puntero nulo y caída del demonio) mediante una petición de lectura TFTP (alias RRQ) con una opción blksize malformada.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2009-08-24 CVE Reserved
- 2009-09-02 CVE Published
- 2009-09-09 First Exploit
- 2024-08-07 CVE Updated
- 2025-05-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-399: Resource Management Errors
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| http://secunia.com/advisories/36563 | Third Party Advisory | |
| http://www.coresecurity.com/content/dnsmasq-vulnerabilities | X_refsource_misc | |
| http://www.securityfocus.com/bid/36120 | Vdb Entry | |
| http://www.thekelleys.org.uk/dnsmasq/CHANGELOG | X_refsource_confirm | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9816 | Signature |
| URL | Date | SRC |
|---|---|---|
| https://www.exploit-db.com/exploits/9617 | 2009-09-09 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.redhat.com/support/errata/RHSA-2009-1238.html | 2017-09-19 | |
| http://www.ubuntu.com/usn/USN-827-1 | 2017-09-19 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=519020 | 2009-09-01 | |
| https://rhn.redhat.com/errata/RHSA-2010-0095.html | 2017-09-19 | |
| https://access.redhat.com/security/cve/CVE-2009-2958 | 2009-09-01 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | <= 2.49 Search vendor "Thekelleys" for product "Dnsmasq" and version " <= 2.49" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.4 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.4" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.5 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.5" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.6 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.6" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.7 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.7" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.95 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.95" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.96 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.96" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.98 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.98" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.992 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.992" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 0.996 Search vendor "Thekelleys" for product "Dnsmasq" and version "0.996" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.0 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.0" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.2 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.2" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.3 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.3" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.4 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.4" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.5 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.5" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.6 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.6" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.7 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.7" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.8 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.8" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.9 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.9" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.10 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.10" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.11 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.11" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.12 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.12" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.13 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.13" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.14 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.14" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.15 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.15" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.16 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.16" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.17 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.17" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 1.18 Search vendor "Thekelleys" for product "Dnsmasq" and version "1.18" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.0 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.0" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.1 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.1" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.2 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.2" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.3 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.3" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.4 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.4" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.5 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.5" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.6 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.6" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.7 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.7" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.8 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.8" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.9 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.9" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.10 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.10" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.11 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.11" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.12 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.12" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.13 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.13" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.14 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.14" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.15 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.15" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.16 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.16" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.17 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.17" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.18 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.18" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.19 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.19" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.20 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.20" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.21 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.21" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.22 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.22" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.23 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.23" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.24 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.24" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.25 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.25" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.26 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.26" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.27 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.27" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.28 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.28" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.29 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.29" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.30 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.30" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.31 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.31" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.33 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.33" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.34 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.34" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.35 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.35" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.36 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.36" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.37 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.37" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.38 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.38" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.39 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.39" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.40 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.40" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.41 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.41" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.42 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.42" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.43 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.43" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.44 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.44" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.45 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.45" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.46 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.46" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.47 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.47" | - |
Affected
| ||||||
| Thekelleys Search vendor "Thekelleys" | Dnsmasq Search vendor "Thekelleys" for product "Dnsmasq" | 2.48 Search vendor "Thekelleys" for product "Dnsmasq" and version "2.48" | - |
Affected
| ||||||