SB2020051817 - Multiple vulnerabilities in FreeRDP
Published: May 18, 2020 Updated: May 18, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 14 vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2020-11521)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in "libfreerdp/codec/planar.c". A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
Note: This vulnerability affects versions greater than 1.0
2) Out-of-bounds read (CVE-ID: CVE-2020-11522)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "libfreerdp/gdi/gdi.c". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or cause a denial of service condition.
Note: This vulnerability afffects versions greater than 1.0
3) Out-of-bounds write (CVE-ID: CVE-2020-11524)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in "libfreerdp/codec/interleaved.c". A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
Note: This vulnerability affects versions greater than 1.0
4) Integer overflow (CVE-ID: CVE-2020-11523)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in "libfreerdp/gdi/region.c". A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note: This vulnerability affects versions greater than 1.0
5) Out-of-bounds read (CVE-ID: CVE-2020-11525)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in "libfreerdp/cache/bitmap.c". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
Note: This vulnerability affects versions greater than 1.0
6) Out-of-bounds read (CVE-ID: CVE-2020-11045)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in "update_read_bitmap_data". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
Note: This vulnerability affects versions after 1.0
7) Out-of-bounds read (CVE-ID: CVE-2020-11046)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "update_read_synchronize". A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the target system.
Note: This vulnerability affects versions after 1.0
8) Out-of-bounds read (CVE-ID: CVE-2020-11048)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "rdp_read_flow_control_pdu". A remote authenticated attacker can trigger out-of-bounds read error and cause a denial of service condition on the target system.
Note: This vulnerability affects versions after 1.0
9) Out-of-bounds read (CVE-ID: CVE-2020-11049)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "rdp_read_share_control_header". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or cause a denial of service condition.
Note: This vulnerability afffects versions greater than 1.1
10) Out-of-bounds read (CVE-ID: CVE-2020-11047)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in "autodetect_recv_bandwidth_measure_results". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
Note: This vulnerability affects versions greater than 1.1
11) Out-of-bounds read (CVE-ID: CVE-2020-11042)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "update_read_icon_info". A remote attacker can trigger out-of-bounds read error and read contents of memory on the system or cause a denial of service condition.
Note: This vulnerability afffects versions greater than 1.1
12) Out-of-bounds read (CVE-ID: CVE-2020-11058)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "rdp_read_font_capability_set". A remote authenticated attacker can trigger out-of-bounds read error and cause a denial of service condition on the target system.
Note: This vulnerability affects versions after 1.1
13) Out-of-bounds read (CVE-ID: CVE-2020-11526)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack
The vulnerability exists due to a boundary condition in "update_recv_secondary_order" function in the "libfreerdp/core/update.c" file. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the target system.
Note: This vulnerability affects verions greater than 1.1
14) Double Free (CVE-ID: CVE-2020-11044)
CWE-ID: CWE-415 - Double Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in "update_read_cache_bitmap_v3_order". A remote attacker can pass specially crafted data to the application, trigger double free error and cause a denal of service condition on the target system.
Note: This vulnerability affects versions greater than 1.2
Remediation
Install update from vendor's website.
References
- https://github.com/FreeRDP/FreeRDP/commits/master
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5cwc-6wc9-255w
- https://pub.freerdp.com/cve/CVE-2020-11521/pocAnalysis_6.pdf
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-48wx-7vgj-fffh
- https://pub.freerdp.com/cve/CVE-2020-11522/pocAnalysis_5.pdf
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cgw8-3mp2-p5qw
- https://pub.freerdp.com/cve/CVE-2020-11524/pocAnalysis_3.pdf
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qrh-8cp8-4x42
- https://pub.freerdp.com/cve/CVE-2020-11523/pocAnalysis_2.pdf
- https://github.com/FreeRDP/FreeRDP/pull/6019/commits/58dc36b3c883fd460199cedb6d30e58eba58298c
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9755-fphh-gmjg
- https://pub.freerdp.com/cve/CVE-2020-11525/pocAnalysis_1.pdf
- https://github.com/FreeRDP/FreeRDP/commit/f8890a645c221823ac133dbf991f8a65ae50d637
- https://github.com/FreeRDP/FreeRDP/issues/6005
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3x39-248q-f4q6
- https://github.com/FreeRDP/FreeRDP/commit/ed53cd148f43cbab905eaa0f5308c2bf3c48cc37
- https://github.com/FreeRDP/FreeRDP/issues/6006
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hx48-wmmm-mr5q
- https://github.com/FreeRDP/FreeRDP/commit/9301bfe730c66180263248b74353daa99f5a969b
- https://github.com/FreeRDP/FreeRDP/issues/6007
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hv8w-f2hx-5gcv
- https://github.com/FreeRDP/FreeRDP/commit/c367f65d42e0d2e1ca248998175180aa9c2eacd0
- https://github.com/FreeRDP/FreeRDP/issues/6008
- https://github.com/FreeRDP/FreeRDP/pull/6019
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wwh7-r2r8-xjpr
- https://github.com/FreeRDP/FreeRDP/commit/f5e73cc7c9cd973b516a618da877c87b80950b65
- https://github.com/FreeRDP/FreeRDP/issues/6009
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9fw6-m2q8-h5pw
- https://github.com/FreeRDP/FreeRDP/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30f
- https://github.com/FreeRDP/FreeRDP/issues/6010
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9jp6-5vf2-cx2q
- https://github.com/FreeRDP/FreeRDP/commit/3627aaf7d289315b614a584afb388f04abfb5bbf
- https://github.com/FreeRDP/FreeRDP/issues/6011
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wjg2-2f82-466g
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-97jw-m5w5-xvf9
- https://pub.freerdp.com/cve/CVE-2020-11526/pocAnalysis_4.pdf
- https://github.com/FreeRDP/FreeRDP/commit/67c2aa52b2ae0341d469071d1bc8aab91f8d2ed8
- https://github.com/FreeRDP/FreeRDP/issues/6013
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cgqh-p732-6x2w