CVE-2006-2444 Use after free in n/a
Remote attackers can crash the Linux kernel via the SNMP NAT helper due to double-free and random memory free errors in snmp_trap_decode.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2006-2444?
CVE-2006-2444 is a high-severity use after free vulnerability in Linux kernel, published on 25 May 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The snmp_trap_decode function in the SNMP NAT helper for Linux kernel before 2.6.16.18 allows remote attackers to cause a denial of service (crash) via unspecified remote attack vectors that cause failures in snmp_trap_decode that trigger (1) frees of random memory or (2) frees of previously-freed memory (double-free) by snmp_trap_decode as well as its calling function, as demonstrated via certain test cases of the PROTOS SNMP test suite.
Which versions are affected by CVE-2006-2444?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2006-2444?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2006-2444 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-2444 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-c9wr-fgjx-x6hj.