Freebsd: Security Vulnerabilities
FreeBSD 5.1 and earlier, and Mac OS X before 10.3.4, allows remote attackers to cause a denial of service (resource exhaustion of memory buffers and system crash) via a large number of out-of-sequence TCP packets, which prevents the operating system from creating new connections.
CVSS Score
5.0
EPSS Score
0.014
Published
2004-03-15
The TCP MSS (maximum segment size) functionality in netinet allows remote attackers to cause a denial of service (resource exhaustion) via (1) a low MTU, which causes a large number of small packets to be produced, or (2) via a large number of packets with a small TCP payload, which cause a large number of calls to the resource-intensive sowakeup function.
CVSS Score
10.0
EPSS Score
0.013
Published
2004-03-03
mksnap_ffs in FreeBSD 5.1 and 5.2 only sets the snapshot flag when creating a snapshot for a file system, which causes default values for other flags to be used, possibly disabling security-critical settings and allowing a local user to bypass intended access restrictions.
CVSS Score
4.6
EPSS Score
0.001
Published
2004-03-03
The shmat system call in the System V Shared Memory interface for FreeBSD 5.2 and earlier, NetBSD 1.3 and earlier, and OpenBSD 2.6 and earlier, does not properly decrement a shared memory segment's reference count when the vm_map_find function fails, which could allow local users to gain read or write access to a portion of kernel memory and gain privileges.
CVSS Score
4.6
EPSS Score
0.003
Published
2004-03-03
The implementation of SYN cookies (syncookies) in FreeBSD 4.5 through 5.0-RELEASE-p3 uses only 32-bit internal keys when generating syncookies, which makes it easier for remote attackers to conduct brute force ISN guessing attacks and spoof legitimate traffic.
CVSS Score
6.4
EPSS Score
0.005
Published
2003-12-31
Integer overflow in the f_count counter in FreeBSD before 4.2 through 5.0 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via multiple calls to (1) fpathconf and (2) lseek, which do not properly decrement f_count through a call to fdrop.
CVSS Score
3.6
EPSS Score
0.001
Published
2003-12-31
The iBCS2 system call translator for statfs in NetBSD 1.5 through 1.5.3 and FreeBSD 4 up to 4.8-RELEASE-p2 and 5 up to 5.1-RELEASE-p1 allows local users to read portions of kernel memory (memory disclosure) via a large length parameter, which copies additional kernel memory into userland memory.
CVSS Score
2.1
EPSS Score
0.001
Published
2003-12-31
slashem-tty in the FreeBSD Ports Collection is installed with write permissions for the games group, which allows local users with group games privileges to modify slashem-tty and execute arbitrary code as other users, as demonstrated using a separate vulnerability in LTris.
CVSS Score
7.2
EPSS Score
0.002
Published
2003-12-31
ISC BIND 8.3.x before 8.3.7, and 8.4.x before 8.4.3, allows remote attackers to poison the cache via a malicious name server that returns negative responses with a large TTL (time-to-live) value.
CVSS Score
4.3
EPSS Score
0.268
Published
2003-12-15
The arplookup function in FreeBSD 5.1 and earlier, Mac OS X before 10.2.8, and possibly other BSD-based systems, allows remote attackers on a local subnet to cause a denial of service (resource starvation and panic) via a flood of spoofed ARP requests.
CVSS Score
5.0
EPSS Score
0.007
Published
2003-11-17