CVE-2009-2958
MEDIUM severity · CVSS 4.3 · CWE-399
4.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)10%
AV:N/AC:M/Au:N/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- 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%3Adef%3A9816