RHSA-2021:4619 - Security Advisory

Topic

An update for freerdp is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox.

Security Fix(es):

• freerdp: improper client input validation for gateway connections allows to overwrite memory (CVE-2021-41159)
• freerdp: improper region checks in all clients allow out of bound write to memory (CVE-2021-41160)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

• BZ - 2016403 - CVE-2021-41159 freerdp: improper client input validation for gateway connections allows to overwrite memory
• BZ - 2016412 - CVE-2021-41160 freerdp: improper region checks in all clients allow out of bound write to memory

CVEs

• CVE-2021-41159
• CVE-2021-41160

References

• https://access.redhat.com/security/updates/classification/#important