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.
Published 2011-12-15 03:57:34
Updated 2012-09-01 03:38:27
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of serviceInformation leak

Threat overview for CVE-2011-4598

Top countries where our scanners detected CVE-2011-4598
Top open port discovered on systems with this issue 5060
IPs affected by CVE-2011-4598 106
Threat actors abusing to this issue? Yes
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Exploit prediction scoring system (EPSS) score for CVE-2011-4598

4.20%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-4598

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
NIST

CWE ids for CVE-2011-4598

References for CVE-2011-4598

Products affected by CVE-2011-4598

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