Espeak-ng 1.52-dev was discovered to contain a buffer-overflow via the function SetUpPhonemeTable at synthdata.c.
**System info**
Ubuntu x86_64, clang 12.0
version: espeak-ng(1.52-dev)

**Command line**
./espeak-ng -f poc -w /dev/null

**Poc**
poc:[poc](https://github.com/SEU-SSL/Poc/blob/main/espeak-ng/id_000064%2Csig_11%2Csrc_008778%2Cop_havoc%2Crep_2)

**AddressSanitizer output**
==4070074==ERROR: AddressSanitizer: global-buffer-overflow on address 0x000000fd06cc at pc 0x0000005555f3 bp 0x7ffcdce1ca70 sp 0x7ffcdce1ca68
READ of size 4 at 0x000000fd06cc thread T0
 #0 0x5555f2 in SetUpPhonemeTable /src/espeak-ng/src/libespeak-ng/synthdata.c:338:43
 #1 0x5552d5 in SelectPhonemeTable /src/espeak-ng/src/libespeak-ng/synthdata.c:360:2
 #2 0x57eae8 in TranslateWord2 /src/espeak-ng/src/libespeak-ng/translate.c:570:4
 #3 0x5797d6 in TranslateClause /src/espeak-ng/src/libespeak-ng/translate.c:1607:6
 #4 0x56fe0b in SpeakNextClause /src/espeak-ng/src/libespeak-ng/synthesize.c:1560:2
 #5 0x543527 in Synthesize /src/espeak-ng/src/libespeak-ng/speech.c:489:9
 #6 0x544552 in sync_espeak_Synth /src/espeak-ng/src/libespeak-ng/speech.c:571:29
 #7 0x544552 in espeak_ng_Synthesize /src/espeak-ng/src/libespeak-ng/speech.c:669:10
 #8 0x51fa9e in espeak_Synth /src/espeak-ng/src/libespeak-ng/espeak_api.c:90:32
 #9 0x4cde94 in main /src/espeak-ng/src/espeak-ng.c:779:3
 #10 0x7f1ab886e082 in __libc_start_main /build/glibc-BHL3KM/glibc-2.31/csu/../csu/libc-start.c:308:16
 #11 0x41d64d in _start (/src/espeak-ng/src/espeak-ng+0x41d64d)

0x000000fd06cc is located 140 bytes to the right of global variable 'phoneme_tab_list' defined in 'src/libespeak-ng/synthdata.c:61:18' (0xfcea20) of size 7200
SUMMARY: AddressSanitizer: global-buffer-overflow /src/espeak-ng/src/libespeak-ng/synthdata.c:338:43 in SetUpPhonemeTable

Shadow bytes around the buggy address:
 0x0000801f2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f2090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f20a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f20b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f20c0: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9 f9
=>0x0000801f20d0: f9 f9 f9 f9 f9 f9 f9 f9 f9[f9]f9 f9 f9 f9 f9 f9
 0x0000801f20e0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f20f0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f2100: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f2110: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f2120: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
Shadow byte legend (one shadow byte represents 8 application bytes):
 Addressable: 00
 Partially addressable: 01 02 03 04 05 06 07
 Heap left redzone: fa
 Freed heap region: fd
 Stack left redzone: f1
 Stack mid redzone: f2
 Stack right redzone: f3
 Stack after return: f5
 Stack use after scope: f8
 Global redzone: f9
 Global init order: f6
 Poisoned by user: f7
 Container overflow: fc
 Array cookie: ac
 Intra object redzone: bb
 ASan internal: fe
 Left alloca redzone: ca
 Right alloca redzone: cb
 Shadow gap: cc
==4070074==ABORTING
global-buffer-overflow exists in the function SetUpPhonemeTable in synthdata.c
This is a GitHub Issue
repo:espeak-ng
owner:espeak-ng
Title : global-buffer-overflow exists in the function SetUpPhonemeTable in synthdata.c
Issue date:

--- start body ---
**System info**
Ubuntu x86_64, clang 12.0
version: espeak-ng(1.52-dev)

**Command line**
./espeak-ng -f poc -w /dev/null

**Poc**
poc:[poc](https://github.com/SEU-SSL/Poc/blob/main/espeak-ng/id_000064%2Csig_11%2Csrc_008778%2Cop_havoc%2Crep_2)

**AddressSanitizer output**
==4070074==ERROR: AddressSanitizer: global-buffer-overflow on address 0x000000fd06cc at pc 0x0000005555f3 bp 0x7ffcdce1ca70 sp 0x7ffcdce1ca68
READ of size 4 at 0x000000fd06cc thread T0
 #0 0x5555f2 in SetUpPhonemeTable /src/espeak-ng/src/libespeak-ng/synthdata.c:338:43
 #1 0x5552d5 in SelectPhonemeTable /src/espeak-ng/src/libespeak-ng/synthdata.c:360:2
 #2 0x57eae8 in TranslateWord2 /src/espeak-ng/src/libespeak-ng/translate.c:570:4
 #3 0x5797d6 in TranslateClause /src/espeak-ng/src/libespeak-ng/translate.c:1607:6
 #4 0x56fe0b in SpeakNextClause /src/espeak-ng/src/libespeak-ng/synthesize.c:1560:2
 #5 0x543527 in Synthesize /src/espeak-ng/src/libespeak-ng/speech.c:489:9
 #6 0x544552 in sync_espeak_Synth /src/espeak-ng/src/libespeak-ng/speech.c:571:29
 #7 0x544552 in espeak_ng_Synthesize /src/espeak-ng/src/libespeak-ng/speech.c:669:10
 #8 0x51fa9e in espeak_Synth /src/espeak-ng/src/libespeak-ng/espeak_api.c:90:32
 #9 0x4cde94 in main /src/espeak-ng/src/espeak-ng.c:779:3
 #10 0x7f1ab886e082 in __libc_start_main /build/glibc-BHL3KM/glibc-2.31/csu/../csu/libc-start.c:308:16
 #11 0x41d64d in _start (/src/espeak-ng/src/espeak-ng+0x41d64d)

0x000000fd06cc is located 140 bytes to the right of global variable 'phoneme_tab_list' defined in 'src/libespeak-ng/synthdata.c:61:18' (0xfcea20) of size 7200
SUMMARY: AddressSanitizer: global-buffer-overflow /src/espeak-ng/src/libespeak-ng/synthdata.c:338:43 in SetUpPhonemeTable

Shadow bytes around the buggy address:
 0x0000801f2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f2090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f20a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f20b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0x0000801f20c0: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9 f9
=>0x0000801f20d0: f9 f9 f9 f9 f9 f9 f9 f9 f9[f9]f9 f9 f9 f9 f9 f9
 0x0000801f20e0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f20f0: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f2100: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f2110: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
 0x0000801f2120: f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9 f9
Shadow byte legend (one shadow byte represents 8 application bytes):
 Addressable: 00
 Partially addressable: 01 02 03 04 05 06 07
 Heap left redzone: fa
 Freed heap region: fd
 Stack left redzone: f1
 Stack mid redzone: f2
 Stack right redzone: f3
 Stack after return: f5
 Stack use after scope: f8
 Global redzone: f9
 Global init order: f6
 Poisoned by user: f7
 Container overflow: fc
 Array cookie: ac
 Intra object redzone: bb
 ASan internal: fe
 Left alloca redzone: ca
 Right alloca redzone: cb
 Shadow gap: cc
==4070074==ABORTING
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