ESB-2020.2603 – [Debian] xrdp: Denial of service – Existing account

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2603
                           xrdp security update
                               30 July 2020

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

Product:           xrdp
Publisher:         Debian
Operating System:  Debian GNU/Linux 10
Impact/Access:     Denial of Service        -- Existing Account
                   Access Confidential Data -- Existing Account
                   Unauthorised Access      -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-4044  

Reference:         ESB-2020.2510

Original Bulletin: 
   http://www.debian.org/security/2020/dsa-4737

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Debian Security Advisory DSA-4737-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
July 29, 2020                         https://www.debian.org/security/faq
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Package        : xrdp
CVE ID         : CVE-2020-4044
Debian Bug     : 964573

Ashley Newson discovered that the XRDP sessions manager was susceptible
to denial of service. A local attacker can further take advantage of
this flaw to impersonate the XRDP sessions manager and capture any user
credentials that are submitted to XRDP, approve or reject arbitrary
login credentials or to hijack existing sessions for xorgxrdp sessions.

For the stable distribution (buster), this problem has been fixed in
version 0.9.9-1+deb10u1.

We recommend that you upgrade your xrdp packages.

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

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

Mailing list: debian-security-announce@lists.debian.org
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