cat: write error: Broken pipe

[meir555]

system info:

www-data@openadmin:/tmp$ uname -a
Linux openadmin 4.15.0-70-generic #79-Ubuntu SMP Tue Nov 12 10:36:11 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

www-data@openadmin:/tmp$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.3 LTS
Release:	18.04
Codename:	bionic

les version: today

les output:

www-data@openadmin:/tmp$ bash les.sh
bash les.sh

Available information:

Kernel version: 4.15.0
Architecture: x86_64
Distribution: ubuntu
Distribution version: 18.04
Additional checks (CONFIG_*, sysctl entries, custom Bash commands): performed
Package listing: from current OS

Searching among:

73 kernel space exploits
43 user space exploits

Possible Exploits:

cat: write error: Broken pipe
[+] [CVE-2018-18955] subuid_shell

   Details: https://bugs.chromium.org/p/project-zero/issues/detail?id=1712
   Exposure: probable
   Tags: [ ubuntu=18.04 ]{kernel:4.15.0-20-generic},fedora=28{kernel:4.16.3-301.fc28}
   Download URL: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/45886.zip
   Comments: CONFIG_USER_NS needs to be enabled

[+] [CVE-2017-0358] ntfs-3g-modprobe

   Details: https://bugs.chromium.org/p/project-zero/issues/detail?id=1072
   Exposure: less probable
   Tags: ubuntu=16.04{ntfs-3g:2015.3.14AR.1-1build1},debian=7.0{ntfs-3g:2012.1.15AR.5-2.1+deb7u2},debian=8.0{ntfs-3g:2014.2.15AR.2-1+deb8u2}
   Download URL: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/41356.zip
   Comments: Distros use own versioning scheme. Manual verification needed. Linux headers must be installed. System must have at least two CPU cores.

Problem:
Please note the line after: "Possible Exploits:"
cat: write error: Broken pipe

There seem to be more exploits, but something goes wrong
For example, CVE-2019-13272 PTRACE_TRACEME should be appropriate but is not displayed