A curl security update has been released for Debian GNU/Linux 9 LTS to address a vulnerability.

DLA 2295-1: curl security update

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Debian LTS Advisory DLA-2295-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Thorsten Alteholz
July 28, 2020   https://wiki.debian.org/LTS
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Package : curl
Version : 7.52.1-5+deb9u11
CVE ID : CVE-2020-8177

A vulnerbailty was found in curl, a command line tool for transferring
data with URL syntax.

When using when using -J (--remote-header-name) and -i (--include) in
the same command line, a malicious server could force curl to overwrite
the contents of local files with incoming HTTP headers.

For Debian 9 stretch, this problem has been fixed in version
7.52.1-5+deb9u11.

We recommend that you upgrade your curl packages.

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

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