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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1670
                           curl security update
                                18 May 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           curl
Publisher:         Debian
Operating System:  Debian GNU/Linux
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-22876  

Reference:         ESB-2021.1461
                   ESB-2021.1178

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2021/05/msg00019.html

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Debian LTS Advisory DLA-2664-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Sylvain Beucler
May 17, 2021                                  https://wiki.debian.org/LTS
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Package        : curl
Version        : 7.52.1-5+deb9u14
CVE ID         : CVE-2021-22876
Debian Bug     : 986269

Viktor Szakats reported that libcurl, an URL transfer library, does
not strip off user credentials from the URL when automatically
populating the Referer HTTP request header field in outgoing HTTP
requests. Sensitive authentication data may leak to the server that is
the target of the second HTTP request.

For Debian 9 stretch, this problem has been fixed in version
7.52.1-5+deb9u14.

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
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===========================================================================
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===========================================================================
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