Wen i use pdfsig to validate a pdf digital signature i get this error "Segmentation fault (core dumped)". I checked log and there is this message "pdfsig[6529]: segfault at 38 ip 00007fb64486a824 sp 00007ffcf4361240 error 4 in libnss3.so[7fb644810000+13c000]"

What can i do to correct this error?

Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic.
pdfsig version 0.62.0

If a program segfaults, it will be recorded in the kernel's log, which in this tells you that pdfsig has segfaulted, along with the address it segfaulted at. segfaults happen when a program tries to access memory it shouldn't be, which most likely means there's a problem in the code for pdfsig.

Unless you're a developer, then there's probably nothing you can do to "correct" this error. I would report the segfault to the software's developers, along with the distribution you're using, and the error message you've posted here from the kernel log.

If you want to read more about segfaults, you can have a look at the link below;

https://en.wikipedia.org/wiki/Segmentation_fault

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