Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Thekelleys | Dnsmasq | <= 2.49 |
Related Weaknesses (CWE)
References
- http://secunia.com/advisories/36563
- http://www.coresecurity.com/content/dnsmasq-vulnerabilities
- http://www.redhat.com/support/errata/RHSA-2009-1238.html
- http://www.securityfocus.com/bid/36120
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
- http://www.ubuntu.com/usn/USN-827-1
- https://bugzilla.redhat.com/show_bug.cgi?id=519020
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://secunia.com/advisories/36563
- http://www.coresecurity.com/content/dnsmasq-vulnerabilities
- http://www.redhat.com/support/errata/RHSA-2009-1238.html
- http://www.securityfocus.com/bid/36120
- http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
- http://www.ubuntu.com/usn/USN-827-1
FAQ
What is CVE-2009-2958?
CVE-2009-2958 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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...
How severe is CVE-2009-2958?
CVE-2009-2958 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-2958?
Check the references section above for vendor advisories and patch information. Affected products include: Thekelleys Dnsmasq.