NewStart CGSL MAIN 6.02 : freerdp Multiple Vulnerabilities (NS-SA-2022-0063)

medium Nessus Plugin ID 160811

Synopsis

The remote NewStart CGSL host is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version MAIN 6.02, has freerdp packages installed that are affected by multiple vulnerabilities:

- In FreeRDP before version 2.1.2, an out of bound reads occurs resulting in accessing a memory location that is outside of the boundaries of the static array PRIMARY_DRAWING_ORDER_FIELD_BYTES. This is fixed in version 2.1.2. (CVE-2020-11095)

- In FreeRDP before version 2.1.2, there is a global OOB read in update_read_cache_bitmap_v3_order. As a workaround, one can disable bitmap cache with -bitmap-cache (default). This is fixed in version 2.1.2.
(CVE-2020-11096)

- In FreeRDP before version 2.1.2, an out of bounds read occurs resulting in accessing a memory location that is outside of the boundaries of the static array PRIMARY_DRAWING_ORDER_FIELD_BYTES. This is fixed in version 2.1.2. (CVE-2020-11097)

- In FreeRDP before version 2.1.2, there is an out-of-bound read in glyph_cache_put. This affects all FreeRDP clients with `+glyph-cache` option enabled This is fixed in version 2.1.2. (CVE-2020-11098)

- In FreeRDP before version 2.1.2, there is an out of bounds read in license_read_new_or_upgrade_license_packet. A manipulated license packet can lead to out of bound reads to an internal buffer. This is fixed in version 2.1.2. (CVE-2020-11099)

- In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto (CVE-2020-15103)

- In FreeRDP before version 2.1.2, there is an out of bounds read in TrioParse. Logging might bypass string length checks due to an integer overflow. This is fixed in version 2.1.2. (CVE-2020-4030)

- In FreeRDP before version 2.1.2, there is an out of bounds read in RLEDECOMPRESS. All FreeRDP based clients with sessions with color depth < 32 are affected. This is fixed in version 2.1.2. (CVE-2020-4033)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL freerdp packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

Plugin Details

Severity: Medium

ID: 160811

File Name: newstart_cgsl_NS-SA-2022-0063_freerdp.nasl

Version: 1.2

Type: local

Family: NewStart CGSL Local Security Checks

Published: 5/9/2022

Updated: 5/9/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2020-4033

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_main:freerdp, p-cpe:/a:zte:cgsl_main:freerdp-debuginfo, p-cpe:/a:zte:cgsl_main:freerdp-debugsource, p-cpe:/a:zte:cgsl_main:freerdp-devel, p-cpe:/a:zte:cgsl_main:freerdp-libs, p-cpe:/a:zte:cgsl_main:freerdp-libs-debuginfo, p-cpe:/a:zte:cgsl_main:libwinpr, p-cpe:/a:zte:cgsl_main:libwinpr-debuginfo, p-cpe:/a:zte:cgsl_main:libwinpr-devel, cpe:/o:zte:cgsl_main:6

Required KB Items: Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2022

Vulnerability Publication Date: 6/22/2020

Reference Information

CVE: CVE-2020-11095, CVE-2020-11096, CVE-2020-11097, CVE-2020-11098, CVE-2020-11099, CVE-2020-15103, CVE-2020-4030, CVE-2020-4033

Detections

Analytics