Linux vulnerabilities

Unknown vulnerability in sockfilter for Linux kernel before 2.2.19 related to "boundary cases," with unknown impact.

Signedness error in (1) getsockopt and (2) setsockopt for Linux kernel before 2.2.19 allows local users to cause a denial of service.

Unknown vulnerability in classifier code for Linux kernel before 2.2.19 could result in denial of service (hang).

The Linux kernel before 2.2.19 does not have unregister calls for (1) CPUID and (2) MSR drivers, which could cause a DoS (crash) by unloading and reloading the drivers.

Off-by-one vulnerability in CPIA driver of Linux kernel before 2.2.19 allows users to modify kernel memory.

Unknown vulnerability in binfmt_misc in the Linux kernel before 2.2.19, related to user pages.

The "mxcsr P4" vulnerability in the Linux kernel before 2.2.17-14, when running on certain Intel CPUs, allows local users to cause a denial of service (system halt).

The "capabilities" feature in Linux before 2.2.16 allows local users to cause a denial of service or gain privileges by setting the capabilities to prevent a setuid program from dropping privileges, aka the "Linux kernel setuid/setcap vulnerability."

A system does not present an appropriate legal message or warning to a user who is accessing it.

The knfsd NFS server in Linux kernel 2.2.x allows remote attackers to cause a denial of service via a negative size value.

IP masquerading in Linux 2.2.x allows remote attackers to route UDP packets through the internal interface by modifying the external source IP address and port number to match those of an established connection.

The Linux 2.2.x kernel does not restrict the number of Unix domain sockets as defined by the wmem_max parameter, which allows local users to cause a denial of service by requesting a large number of sockets.

Vulnerability when Network Address Translation (NAT) is enabled in Linux 2.2.10 and earlier with ipchains, or FreeBSD 3.2 with ipfw, allows remote attackers to cause a denial of service (kernel panic) via a ping -R (record route) command.

strace allows local users to read arbitrary files via memory mapped file names.

The ping command in Linux 2.0.3x allows local users to cause a denial of service by sending large packets with the -R (record route) option.

Buffer overflow in Linux su command gives root access to local users.

Linux kernel before 2.3.18 or 2.2.13pre15, with SLIP and PPP options, allows local unprivileged users to forge IP packets via the TIOCSETD option on tty devices.

mknod in Linux 2.2 follows symbolic links, which could allow local users to overwrite files or gain privileges.

The pt_chown command in Linux allows local users to modify TTY terminal devices that belong to other users.

IPChains in Linux kernels 2.2.10 and earlier does not reassemble IP fragments before checking the header information, which allows a remote attacker to bypass the filtering rules using several fragments with 0 offsets.

Linux 2.0.37 does not properly encode the Custom segment limit, which allows local users to gain root privileges by accessing and modifying kernel memory.

Denial of service in Linux 2.2.x kernels via malformed ICMP packets containing unusual types, codes, and IP header lengths.

Linux 2.2.3 and earlier allow a remote attacker to perform an IP fragmentation attack, causing a denial of service.

In Linux before version 2.0.36, remote attackers can spoof a TCP connection and pass data to the application layer before fully establishing the connection.

super 3.11.6 and other versions have a buffer overflow in the syslog utility which allows a local user to gain root access.

Buffer overflow in Linux autofs module through long directory names allows local users to perform a denial of service.

Versions of rpcbind including Linux, IRIX, and Wietse Venema's rpcbind allow a remote attacker to insert and delete entries by spoofing a source address.

Denial of service in Linux 2.2.0 running the ldd command on a core file.

Denial of service in Linux 2.0.36 allows local users to prevent any server from listening on any non-privileged port.

The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.

A race condition in Linux 2.2.1 allows local users to read arbitrary memory from /proc files.

Linux 2.1.132 and earlier allows local users to cause a denial of service (resource exhaustion) by reading a large buffer from a random device (e.g. /dev/urandom), which cannot be interrupted until the read has completed.

fte-console in the fte package before 0.46b-4.1 does not drop root privileges, which allows local users to gain root access via the virtual console device.

KDE kppp allows local users to create a directory in an arbitrary location via the HOME environmental variable.

KDE allows local users to execute arbitrary commands by setting the KDEDIR environmental variable to modify the search path that KDE uses to locate its executables.

KDE klock allows local users to kill arbitrary processes by specifying an arbitrary PID in the .kss.pid file.

Linux 2.0.34 does not properly prevent users from sending SIGIO signals to arbitrary processes, which allows local users to cause a denial of service by sending SIGIO to processes that do not catch it.

Bug in AMD K6 processor on Linux 2.0.x and 2.1.x kernels allows local users to cause a denial of service (crash) via a particular sequence of instructions, possibly related to accessing addresses outside of segments.

Nestea variation of teardrop IP fragmentation denial of service.

Linux bdash game has a buffer overflow that allows local users to gain root access.

ICMP messages to broadcast addresses are allowed, allowing for a Smurf attack that can cause a denial of service.

Denial of service of inetd on Linux through SYN and RST packets.

File creation and deletion, and remote execution, in the BSD line printer daemon (lpd).

Linux implementations of TFTP would allow access to files outside the restricted directory.

rpc.mountd on Linux, Ultrix, and possibly other operating systems, allows remote attackers to determine the existence of a file on the server by attempting to mount that file, which generates different error messages depending on whether the file exists or not.

ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.

The rwho/rwhod service is running, which exposes machine status and user information.

Denial of service in RPC portmapper allows attackers to register or unregister RPC services or spoof RPC services using a spoofed source IP address such as 127.0.0.1.

Listening TCP ports are sequentially allocated, allowing spoofing attacks.

NFS cache poisoning.