A lrzsz security update has been released for Debian GNU/Linux 9 LTS to address an information leak issue.

DLA 2900-1: lrzsz security update

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Debian LTS Advisory DLA-2900-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Thorsten Alteholz
January 25, 2022   https://wiki.debian.org/LTS
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Package : lrzsz
Version : 0.12.21-8+deb9u1
CVE ID : CVE-2018-10195

An issues has been found in lrzsz, a set of tools for zmodem/xmodem/ymodem
file transfer.
Due to an incorrect length check, which might result in a size_t wrap
around, an information leak to the receiving side could happen.

For Debian 9 stretch, this problem has been fixed in version
0.12.21-8+deb9u1.

We recommend that you upgrade your lrzsz packages.

For the detailed security status of lrzsz please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/lrzsz

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS