CVE-2009-2957 Memory corruption in n/a
Remote attackers can execute arbitrary code via a heap-based buffer overflow in dnsmasq's TFTP service when 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-2009-2957?
CVE-2009-2957 is a medium-severity memory corruption 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
Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.
Weakness: CWE-119
Which versions are affected by CVE-2009-2957?
It affects 1 product.
Products include Thekelleys Dnsmasq.
How do I fix CVE-2009-2957?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2009-2957 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2957 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2009-2957, GHSA-3wv8-c9pw-2c36.