Invalid read and unitialized data issue detected in Remoted

[vikman90]

Wazuh version	Component	Install type	Install method	Platform
3.10.0	Remoted	Manager	Any	Linux

Invalid integer read

==9220== Invalid read of size 4
==9220==    at 0x11ADCB: rem_getCounter (netcounter.c:45)
==9220==    by 0x11BFC0: rem_handler_main (secure.c:240)
==9220==    by 0x4E39FA2: start_thread (pthread_create.c:486)
==9220==    by 0x4F4E4CE: clone (clone.S:95)
==9220==  Address 0x57c0560 is 464 bytes inside a block of size 1,760 free'd
==9220==    at 0x48369AB: free (vg_replace_malloc.c:530)
==9220==    by 0x4F29725: free_dfa_content (regcomp.c:614)
==9220==    by 0x4F29725: free_dfa_content (regcomp.c:594)
==9220==    by 0x4F33480: regfree (regcomp.c:650)
==9220==    by 0x1BF717: OS_PRegex (regex_op.c:34)
==9220==    by 0x14839D: OS_IsValidIP (validate_op.c:318)
==9220==    by 0x1318EC: OS_AddKey (keys.c:82)
==9220==    by 0x132523: OS_ReadKeys (keys.c:292)
==9220==    by 0x11B9FE: HandleSecure (secure.c:129)
==9220==    by 0x11B520: HandleRemote (remoted.c:117)
==9220==    by 0x11DEFD: main (main.c:209)
==9220==  Block was alloc'd at
==9220==    at 0x483577F: malloc (vg_replace_malloc.c:299)
==9220==    by 0x4F31E0E: init_dfa (regcomp.c:871)
==9220==    by 0x4F31E0E: re_compile_internal (regcomp.c:771)
==9220==    by 0x4F3337B: regcomp (regcomp.c:497)
==9220==    by 0x1BF6B1: OS_PRegex (regex_op.c:27)
==9220==    by 0x14839D: OS_IsValidIP (validate_op.c:318)
==9220==    by 0x1318EC: OS_AddKey (keys.c:82)
==9220==    by 0x132523: OS_ReadKeys (keys.c:292)
==9220==    by 0x11B9FE: HandleSecure (secure.c:129)
==9220==    by 0x11B520: HandleRemote (remoted.c:117)
==9220==    by 0x11DEFD: main (main.c:209)

Uninitialized data read

==9220== Conditional jump or move depends on uninitialised value(s)
==9220==    at 0x11BFD1: rem_handler_main (secure.c:241)
==9220==    by 0x4E39FA2: start_thread (pthread_create.c:486)
==9220==    by 0x4F4E4CE: clone (clone.S:95)
==9220==  Uninitialised value was created by a heap allocation
==9220==    at 0x4837D7B: realloc (vg_replace_malloc.c:826)
==9220==    by 0x11AC5F: rem_setCounter (netcounter.c:34)
==9220==    by 0x11C8C7: _close_sock (secure.c:443)
==9220==    by 0x11BEA3: HandleSecure (secure.c:210)
==9220==    by 0x11B520: HandleRemote (remoted.c:117)
==9220==    by 0x11DEFD: main (main.c:209)

Cause

1. The former issue was due to a missing array size checking in the message counter library. In most cases, Remoted would try to read before writing.
2. The latter means that the array is not being correctly initialized during an expansion.