CVE-2011-4598
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)…
Does this matter?
Lower severity and a low EPSS score (2.35%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 2.35% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- digium/asterisk
- Source
- secalert@redhat.com
EPSS 2.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://downloads.asterisk.org/pub/security/AST-2011-014.html
- http://openwall.com/lists/oss-security/2011/12/09/3
- http://openwall.com/lists/oss-security/2011/12/09/4
- http://osvdb.org/77598
- http://secunia.com/advisories/47273
- http://www.debian.org/security/2011/dsa-2367
- http://downloads.asterisk.org/pub/security/AST-2011-014.html
- http://openwall.com/lists/oss-security/2011/12/09/3
- http://openwall.com/lists/oss-security/2011/12/09/4
- http://osvdb.org/77598
- http://secunia.com/advisories/47273
- http://www.debian.org/security/2011/dsa-2367
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.