SB2020062908 - Multiple vulnerabilities in FreeRDP

Main Vulnerability Database SB2020062908

SB2020062908 - Multiple vulnerabilities in FreeRDP

Published: June 29, 2020 Updated: June 29, 2020

Security Bulletin ID SB2020062908

Severity

High

Patch available

YES

Number of vulnerabilities 9

Exploitation vector Remote access

Highest impact Code execution

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 9 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2020-4030)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in TrioParse. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

2) Out-of-bounds read (CVE-ID: CVE-2020-11099)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in "license_read_new_or_upgrade_license_packet". A remote attacker can send a specially crafted license packet, trigger out-of-bounds read error and read contents of memory on the system.

3) Out-of-bounds read (CVE-ID: CVE-2020-11098)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in "glyph_cache_put" when "+glyph-cache" option is enabled. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

4) Out-of-bounds read (CVE-ID: CVE-2020-11097)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in "ntlm_av_pair_get". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

5) Out-of-bounds read (CVE-ID: CVE-2020-11096)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in "update_read_cache_bitmap_v3_order". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

6) Out-of-bounds read (CVE-ID: CVE-2020-11095)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in "update_recv_primary_order". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

7) Out-of-bounds read (CVE-ID: CVE-2020-4033)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in RLEDECOMPRESS. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

8) Incorrect Conversion between Numeric Types (CVE-ID: CVE-2020-4032)

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to an integer casting issue in "update_recv_secondary_order". A remote attacker can gain access to sensitive information on the target system.

9) Use-after-free (CVE-ID: CVE-2020-4031)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in "gdi_SelectObject" when using compatibility mode with /relax-order-checks. A remote attacker can execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Install update from vendor's website.

References