The runtime linker in QNX Neutrino RTOS 6.5.0 before Service Pack 1 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environment variables when a program is spawned from a setuid program, which allows local users to overwrite files via a symlink attack.

Multiple stack-based buffer overflows in QNX Neutrino RTOS 6.3.0 allow local users to execute arbitrary code via long (1) ABLPATH or (2) ABLANG environment variables in the libAP library (libAp.so.2) or (3) a long PHOTON_PATH environment variable to the setitem function in the libph library.

QNX Neutrino RTOS 6.3.0 allows local users to cause a denial of service (hang) by supplying a "break *0xb032d59f" command to gdb.

Format string vulnerability in fontsleuth in QNX Neutrino RTOS 6.3.0 allows local users to execute arbitrary code via format string specifiers in the zeroth argument (program name).

Multiple buffer overflows in QNX Neutrino RTOS 6.2.0 allow local users to execute arbitrary code via a long first argument to the (1) su or (2) passwd commands.

QNX Neutrino RTOS 6.3.0 ships /etc/rc.d/rc.local with world-writable permissions, which allows local users to modify the file and execute arbitrary code at system startup.

Race condition in phfont in QNX Neutrino RTOS 6.2.1 allows local users to execute arbitrary code via unspecified manipulations of the PHFONT and PHOTON2_PATH environment variables.

Untrusted search path vulnerability in the crttrap command in QNX Neutrino RTOS 6.2.1 allows local users to load arbitrary libraries via a LD_LIBRARY_PATH environment variable that references a malicious library.

The dhcp.client program for QNX 4.25 vmware is setuid, possibly by default, which allows local users to modify the NIC configuration and conduct other attacks.

Buffer overflow in phgrafx in QNX 6.2.1 and 6.3.0 allows local users to execute arbitrary code via a long command line argument.