The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.
Published 2011-07-18 22:55:01
Updated 2023-02-13 01:18:58
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Threat overview for CVE-2011-1093

Top countries where our scanners detected CVE-2011-1093
Top open port discovered on systems with this issue 49152
IPs affected by CVE-2011-1093 1,472
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-1093!
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Exploit prediction scoring system (EPSS) score for CVE-2011-1093

2.71%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 89 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-1093

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
NIST

CWE ids for CVE-2011-1093

  • A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-1093

Products affected by CVE-2011-1093

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