CVE-2009-2958 Null dereference in n/a
Remote attackers can crash the dnsmasq daemon via a malformed TFTP request when TFTP support is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-2958?
CVE-2009-2958 is a medium-severity vulnerability in n/a, published on 2 Sep 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-399
Which versions are affected by CVE-2009-2958?
It affects 1 product.
Products include Thekelleys Dnsmasq.
How do I fix CVE-2009-2958?
Upgrade to a fixed version.
Is CVE-2009-2958 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2958 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2009-2958, GHSA-m4qp-3gf5-73rm.