The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.
Published 2012-06-13 10:24:54
Updated 2023-02-13 01:19:33
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Threat overview for CVE-2011-1927

Top countries where our scanners detected CVE-2011-1927
Top open port discovered on systems with this issue 49152
IPs affected by CVE-2011-1927 3,760
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-1927!
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Exploit prediction scoring system (EPSS) score for CVE-2011-1927

0.81%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-1927

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST

Products affected by CVE-2011-1927

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