ucsrvwp crashed with Signal 11 (SEGV)

Products

• CA Automic Workload Automation - Automation Engine

Issue/Introduction

An issue was found where executing an existing job would cause the WPs to crash with a SIG11:

 

WP-Log:

20230223/070639.875 - U00020348 Object '&1' line '&2': Attribute 'JOBS/UNIX_CMD' will be truncated to 508 Characters. Value 'test -f --> 27644 <-- Init_Environment     environment Nr. 014 : 'LS_COLORS=no=00:fi=00:ln=00;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=41;33;01:ex=00;32:*.cmd=00;32:*.exe=01;32:*.com=01;32:*.bat=01;32:*.btm=01;32:*.dll=01;32:*.tar=00;31:*.tbz=00;31:*.tgz=00;31:*.rpm=00;31:*.deb=00;31:*.arj=00;31:*.taz=00;31:*.lzh=00;31:*.lzma=00;31:*.zip=00;31:*.zoo=00;31:*.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:*.tb2=00;31:*.tz2=00;31:*.tbz2=00;31:*.xz=00;31:*.avi=01;35:*.bmp=01;35:*.fli=01;35:*.gif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mng=01;35:*.mov=01;35:*.mpg=01;35:*.pcx=01;35:*.pbm=01;35:*.pgm=01;35:*.png=01;35:*.ppm=01;35:*.tga=01;35:*.tif=01;35:*.xbm=01;35:*.xpm=01;35:*.dl=01;35:*.gl=01;35:*.wmv=01;35:*.aiff=00;32:*.au=00;32:*.mid=00;32:*.mp3=00;32:*.ogg=00;32:*.voc=00;32:*.wav=00;32:di=01;34a0' is too long.


20230223/070639.881 - Signal 11 (SEGV) at 0x7f85df5f4000 with code 2

 

The bug would occur  when an attribute longer than 1kb was set using the `:put_att` script function due to incorrect length validation and attempting to write out of memory bounds.

 

Environment

Release : Automation Engine 21.0.5

Cause

Software Bug

Resolution

The bug was found and fixed with Automation Engine V21.0.5+HF.1, which is available for download already.