Multiple buffer overflows in realtime operating system (RTOS) 6.1.0 allows local users to execute arbitrary code via (1) a long ABLANG environment variable in phlocale or (2) a long -u option to pkg-installer.

ptrace in the QNX realtime operating system (RTOS) 4.25 and 6.1.0 allows programs to attach to privileged processes, which could allow local users to execute arbitrary code by modifying running processes.

The timer implementation in QNX RTOS 6.1.0 allows local users to cause a denial of service (hang) and possibly execute arbitrary code by creating multiple timers with a 1-ms tick.

The (1) phrafx and (2) phgrafx-startup programs in QNX realtime operating system (RTOS) 4.25 and 6.1.0 do not properly drop privileges before executing the system command, which allows local users to execute arbitrary commands by modifying the PATH environment variable to reference a malicious crttrap program.

Multiple buffer overflows in QNX 4.25 may allow local users to execute arbitrary code via long command line arguments to (1) sample, (2) ex, (3) du, (4) find, (5) lex, (6) mkdir, (7) rm, (8) serserv, (9) tcpserv, (10) termdef, (11) time, (12) unzip, (13) use, (14) wcc, (15) wcc386, (16) wd, (17) wdisasm, (18) which, (19) wlib, (20) wlink, (21) wpp, (22) wpp386, (23) wprof, (24) write, or (25) wstrip.

/bin/su in QNX realtime operating system (RTOS) 4.25 and 6.1.0 allows local users to obtain sensitive information from core dump files by sending the SIGSERV (invalid memory reference) signal.

Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.

Certain patches for QNX Neutrino realtime operating system (RTOS) 6.2.0 set insecure permissions for the files (1) /sbin/io-audio by OS Update Patch A, (2) /bin/shutdown, (3) /sbin/fs-pkg, and (4) phshutdown by QNX experimental patches, (5) cpim, (6) vpim, (7) phrelaycfg, and (8) columns, (9) othello, (10) peg, (11) solitaire, and (12) vpoker in the games pack 2.0.3, which allows local users to gain privileges by modifying the files before permissions are changed.

Multiple buffer overflows in QNX RTOS 4.25 may allow attackers to execute arbitrary code via long filename arguments to (1) Watcom or (2) int10.

Photon microGUI in QNX Neutrino realtime operating system (RTOS) 6.1.0 and 6.2.0 allows attackers to read user clipboard information via a direct request to the 1.TEXT file in a directory whose name is a hex-encoded user ID.