Detections
Analytics
EulerOS 2.0 SP8 : freerdp (EulerOS-SA-2022-1564)
medium Nessus Plugin ID 160170
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the freerdp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :- In FreeRDP less than or equal to 2.0.0, by providing manipulated input a malicious client can create a double free condition and crash the server. This is fixed in version 2.1.0. (CVE-2020-11017)
- In FreeRDP less than or equal to 2.0.0, a possible resource exhaustion vulnerability can be performed.
Malicious clients could trigger out of bound reads causing memory allocation with random size. This has been fixed in 2.1.0. (CVE-2020-11018)
- In FreeRDP less than or equal to 2.0.0, when running with logger set to 'WLOG_TRACE', a possible crash of application could occur due to a read of an invalid array index. Data could be printed as string to local terminal. This has been fixed in 2.1.0. (CVE-2020-11019)
- In FreeRDP less than or equal to 2.0.0, an Integer Overflow to Buffer Overflow exists. When using /video redirection, a manipulated server can instruct the client to allocate a buffer with a smaller size than requested due to an integer overflow in size calculation. With later messages, the server can manipulate the client to write data out of bound to the previously allocated buffer. This has been patched in 2.1.0.
(CVE-2020-11038)
- In FreeRDP less than or equal to 2.0.0, there is an out-of-bound data read from memory in clear_decompress_subcode_rlex, visualized on screen as color. This has been patched in 2.1.0.
(CVE-2020-11040)
- 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.
(CVE-2020-11041)
- In FreeRDP after 1.1 and before 2.0.0, a stream out-of-bounds seek in rdp_read_font_capability_set could lead to a later out-of-bounds read. As a result, a manipulated client or server might force a disconnect due to an invalid data read. This has been fixed in 2.0.0. (CVE-2020-11058)
- In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0. (CVE-2020-11086)
- In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_AuthenticateMessage.
This has been fixed in 2.1.0. (CVE-2020-11087)
- In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_NegotiateMessage. This has been fixed in 2.1.0. (CVE-2020-11088)
- libfreerdp/codec/planar.c in FreeRDP version > 1.0 through 2.0.0-rc4 has an Out-of-bounds Write.
(CVE-2020-11521)
- libfreerdp/gdi/region.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Integer Overflow.
(CVE-2020-11523)
- libfreerdp/cache/bitmap.c in FreeRDP versions > 1.0 through 2.0.0-rc4 has an Out of bounds read.
(CVE-2020-11525)
- libfreerdp/core/update.c in FreeRDP versions > 1.1 through 2.0.0-rc4 has an Out-of-bounds Read.
(CVE-2020-11526)
- An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in security_fips_decrypt in libfreerdp/core/security.c due to an uninitialized value.
(CVE-2020-13397)
- 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)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected freerdp packages.See Also
Plugin Details
Severity: Medium
ID: 160170
File Name: EulerOS_SA-2022-1564.nasl
Version: 1.4
Type: local
Family: Huawei Local Security Checks
Published: 4/25/2022
Updated: 10/31/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2020-4030
CVSS v3
Risk Factor: Medium
Base Score: 6.6
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2020-11523
Vulnerability Information
CPE: p-cpe:/a:huawei:euleros:freerdp, p-cpe:/a:huawei:euleros:freerdp-libs, p-cpe:/a:huawei:euleros:libwinpr, cpe:/o:huawei:euleros:2.0
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/25/2022
Vulnerability Publication Date: 5/12/2020
Reference Information
CVE: CVE-2020-11017, CVE-2020-11018, CVE-2020-11019, CVE-2020-11038, CVE-2020-11040, CVE-2020-11041, CVE-2020-11058, CVE-2020-11086, CVE-2020-11087, CVE-2020-11088, CVE-2020-11521, CVE-2020-11523, CVE-2020-11525, CVE-2020-11526, CVE-2020-13397, CVE-2020-15103, CVE-2020-4030