[LBBS-122] mod_http: Uninitialized memory access during Basic Authentication

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==197802== Thread 23:
==197802== Conditional jump or move depends on uninitialised value(s)
==197802==    at 0x11BB44: base64_decode (base64.c:221)
==197802==    by 0x569410E: process_headers (mod_http.c:807)
==197802==    by 0x56978E2: http_parse_request (mod_http.c:1824)
==197802==    by 0x5697919: http_handle_request (mod_http.c:1835)
==197802==    by 0x56981C9: http_handler (mod_http.c:1994)
==197802==    by 0x569B36C: __http_handler (mod_http.c:2772)
==197802==    by 0x161273: thread_run (thread.c:508)
==197802==    by 0x4F3D1F4: start_thread (pthread_create.c:442)
==197802==    by 0x4FBCB3F: clone (clone.S:100)
==197802==  Uninitialised value was created by a stack allocation
==197802==    at 0x5693B81: process_headers (mod_http.c:723)
==197802==
==197802== Use of uninitialised value of size 8
==197802==    at 0x11BB73: base64_decode (base64.c:221)
==197802==    by 0x569410E: process_headers (mod_http.c:807)
==197802==    by 0x56978E2: http_parse_request (mod_http.c:1824)
==197802==    by 0x5697919: http_handle_request (mod_http.c:1835)
==197802==    by 0x56981C9: http_handler (mod_http.c:1994)
==197802==    by 0x569B36C: __http_handler (mod_http.c:2772)
==197802==    by 0x161273: thread_run (thread.c:508)
==197802==    by 0x4F3D1F4: start_thread (pthread_create.c:442)
==197802==    by 0x4FBCB3F: clone (clone.S:100)
==197802==  Uninitialised value was created by a stack allocation
==197802==    at 0x5693B81: process_headers (mod_http.c:723)
==197802==
==197802== Thread 35:
==197802== Conditional jump or move depends on uninitialised value(s)
==197802==    at 0x11BAF9: base64_decode (base64.c:220)
==197802==    by 0x569410E: process_headers (mod_http.c:807)
==197802==    by 0x56978E2: http_parse_request (mod_http.c:1824)
==197802==    by 0x5697919: http_handle_request (mod_http.c:1835)
==197802==    by 0x56981C9: http_handler (mod_http.c:1994)
==197802==    by 0x569B36C: __http_handler (mod_http.c:2772)
==197802==    by 0x161273: thread_run (thread.c:508)
==197802==    by 0x4F3D1F4: start_thread (pthread_create.c:442)
==197802==    by 0x4FBCB3F: clone (clone.S:100)
==197802==  Uninitialised value was created by a stack allocation
==197802==    at 0x5693B81: process_headers (mod_http.c:723)
==197802==
==197802== Use of uninitialised value of size 8
==197802==    at 0x11BB28: base64_decode (base64.c:220)
==197802==    by 0x569410E: process_headers (mod_http.c:807)
==197802==    by 0x56978E2: http_parse_request (mod_http.c:1824)
==197802==    by 0x5697919: http_handle_request (mod_http.c:1835)
==197802==    by 0x56981C9: http_handler (mod_http.c:1994)
==197802==    by 0x569B36C: __http_handler (mod_http.c:2772)
==197802==    by 0x161273: thread_run (thread.c:508)
==197802==    by 0x4F3D1F4: start_thread (pthread_create.c:442)
==197802==    by 0x4FBCB3F: clone (clone.S:100)
==197802==  Uninitialised value was created by a stack allocation
==197802==    at 0x5693B81: process_headers (mod_http.c:723)

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