CVE-2011-4598 Null dereference in n/a
Remote attackers can crash the Asterisk daemon via crafted SIP requests when automon is enabled, causing 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-2011-4598?
CVE-2011-4598 is a medium-severity vulnerability in Digium Asterisk, published on 15 Dec 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The handle_request_info function in channels/chan_sip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted sequence of SIP requests.
Weakness: CWE-200
Which versions are affected by CVE-2011-4598?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2011-4598?
Upgrade to a fixed version.
Is CVE-2011-4598 being exploited?
There is no known exploitation of CVE-2011-4598 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as DEBIAN-CVE-2011-4598, GHSA-w869-x8wp-7hr5.