CVE-2009-4501 Null dereference in n/a
Remote attackers can crash Zabbix Server by sending requests with missing separators, causing a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-4501?
CVE-2009-4501 is a medium-severity vulnerability in Zabbix Zabbix, published on 31 Dec 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The zbx_get_next_field function in libs/zbxcommon/str.c in Zabbix Server before 1.6.8 allows remote attackers to cause a denial of service (crash) via a request that lacks expected separators, which triggers a NULL pointer dereference, as demonstrated using the Command keyword.
Weakness: CWE-119
Which versions are affected by CVE-2009-4501?
It affects 1 product.
Products include Zabbix Zabbix.
How do I fix CVE-2009-4501?
Upgrade to a fixed version.
Is CVE-2009-4501 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-4501 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Zabbix Zabbix
Sources
Also known as DEBIAN-CVE-2009-4501, GHSA-m4jh-qvf3-23v6.