CVE-2009-0871 Null dereference in n/a
Authenticated remote attackers can crash Asterisk via malformed SIP INVITE requests when the pedantic option is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-0871?
CVE-2009-0871 is a low-severity vulnerability in Digium Asterisk, published on 11 Mar 2009. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions.
Weakness: CWE-20
Which versions are affected by CVE-2009-0871?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2009-0871?
No fix has been published for CVE-2009-0871 yet. Limit exposure of the affected software until one is available.
Is CVE-2009-0871 being exploited?
There is no known exploitation of CVE-2009-0871 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as GHSA-v44g-p4wf-wh36.