Improper Validation of Array Index Affecting libwinpr package, versions <0:2.1.1-2.el7


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.15% (52nd percentile)

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  • Snyk ID SNYK-RHEL7-LIBWINPR-1529256
  • published 26 Jul 2021
  • disclosed 9 Apr 2020

How to fix?

Upgrade RHEL:7 libwinpr to version 0:2.1.1-2.el7 or higher.
This issue was patched in RHSA-2020:4031.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libwinpr package and not the libwinpr package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In FreeRDP less than or equal to 2.0.0, an outside controlled array index is used unchecked for data used as configuration for sound backend (alsa, oss, pulse, ...). The most likely outcome is a crash of the client instance followed by no or distorted sound or a session disconnect. If a user cannot upgrade to the patched version, a workaround is to disable sound for the session. This has been patched in 2.1.0.

CVSS Scores

version 3.1
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NVD

2.7 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
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Red Hat

2.7 low
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SUSE

2.2 low