RHSA-2021:1849 - Security Advisory

Topic

An update for freerdp is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

The following packages have been upgraded to a later upstream version: freerdp (2.2.0). (BZ#1881971)

Security Fix(es):

• freerdp: out of bounds read in TrioParse (CVE-2020-4030)
• freerdp: out of bound reads resulting in accessing memory location outside of static array PRIMARY_DRAWING_ORDER_FIELD_BYTES (CVE-2020-11095)
• freerdp: out of bounds read in PRIMARY_DRAWING_ORDER_FIELD_BYTES (CVE-2020-11097)
• freerdp: out of bounds read in license_read_new_or_upgrade_license_packet (CVE-2020-11099)
• freerdp: integer overflow due to missing input sanitation in rdpegfx channel (CVE-2020-15103)
• freerdp: out-of-bounds read in RLEDECOMPRESS (CVE-2020-4033)
• freerdp: out-of-bound read in update_read_cache_bitmap_v3_order (CVE-2020-11096)
• freerdp: out-of-bound read in glyph_cache_put (CVE-2020-11098)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from 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 for x86_64 8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.4 x86_64
• Red Hat Enterprise Linux for ARM 64 8 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.4 ppc64le
• Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions 8.6 x86_64
• Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions 8.4 x86_64
• Red Hat CodeReady Linux Builder for x86_64 8 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6 aarch64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.6 x86_64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.4 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.6 ppc64le
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.4 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 8.6 s390x
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 8.4 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.6 aarch64
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.4 aarch64

Fixes

• BZ - 1854843 - CVE-2020-11098 freerdp: out-of-bound read in glyph_cache_put
• BZ - 1854847 - CVE-2020-11096 freerdp: out-of-bound read in update_read_cache_bitmap_v3_order
• BZ - 1854850 - CVE-2020-11095 freerdp: out of bound reads resulting in accessing memory location outside of static array PRIMARY_DRAWING_ORDER_FIELD_BYTES
• BZ - 1854876 - CVE-2020-4033 freerdp: out-of-bounds read in RLEDECOMPRESS
• BZ - 1854895 - CVE-2020-4030 freerdp: out of bounds read in TrioParse
• BZ - 1854899 - CVE-2020-11099 freerdp: out of bounds read in license_read_new_or_upgrade_license_packet
• BZ - 1854910 - CVE-2020-11097 freerdp: out of bounds read in PRIMARY_DRAWING_ORDER_FIELD_BYTES
• BZ - 1858909 - CVE-2020-15103 freerdp: integer overflow due to missing input sanitation in rdpegfx channel
• BZ - 1881971 - Rebase freerdp to the latest stable release

CVEs

• CVE-2020-4030
• CVE-2020-4033
• CVE-2020-11095
• CVE-2020-11096
• CVE-2020-11097
• CVE-2020-11098
• CVE-2020-11099
• CVE-2020-15103

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/