TLS: fix another interger overflow in certificate processing #1915
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```
==5374==ERROR: AddressSanitizer: SEGV on unknown address 0x60400001a10d (pc 0x00000056e180 bp 0x7ffcca15ae20 sp 0x7ffcca15abe0 T0)
==5374==The signal is caused by a WRITE memory access.
SCARINESS: 30 (wild-addr-write)
#0 0x56e180 in processCertificateElements ndpi/src/lib/protocols/tls.c:683:79
ntop#1 0x56c60f in LLVMFuzzerTestOneInput ndpi/fuzz/fuzz_tls_certificate.c:43:3
```
Found by oss-fuzz
See: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=57448
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utoni
approved these changes
Mar 30, 2023
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Found by oss-fuzz
See: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=57448