CVE-2005-4837 Use after free in n/a

Critical 10.0 Published 10 Apr 2007 Updated 8 Aug 2024

Remote attackers can crash the Net-SNMP daemon by triggering a TCP disconnect in master agentx mode, causing a denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2005-4837?

CVE-2005-4837 is a critical use after free vulnerability in n/a, published on 10 Apr 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

snmp_api.c in snmpd in Net-SNMP 5.2.x before 5.2.2, 5.1.x before 5.1.3, and 5.0.x before 5.0.10.2, when running in master agentx mode, allows remote attackers to cause a denial of service (crash) by causing a particular TCP disconnect, which triggers a free of an incorrect variable, a different vulnerability than CVE-2005-2177.

Weakness: CWE-189, CWE-16

Which versions are affected by CVE-2005-4837?

It affects 2 products.

Products include Net-Snmp Net-Snmp, Sourceforge Net-Snmp.

How do I fix CVE-2005-4837?

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-2005-4837 being exploited?

There is no known exploitation of CVE-2005-4837 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2005-4837, GHSA-m3xm-f262-69qm.