openEuler update for freerdp



Risk High
Patch available YES
Number of vulnerabilities 11
CVE-ID CVE-2020-11526
CVE-2020-11044
CVE-2020-11042
CVE-2020-11095
CVE-2020-11045
CVE-2020-11522
CVE-2020-11524
CVE-2020-11521
CVE-2020-11525
CVE-2020-11523
CVE-2019-17177
CWE-ID CWE-125
CWE-415
CWE-787
CWE-190
CWE-401
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 openEuler
Operating systems & Components / Operating system

freerdp-devel
Operating systems & Components / Operating system package or component

libwinpr-devel
Operating systems & Components / Operating system package or component

freerdp-debuginfo
Operating systems & Components / Operating system package or component

freerdp-help
Operating systems & Components / Operating system package or component

libwinpr
Operating systems & Components / Operating system package or component

freerdp-debugsource
Operating systems & Components / Operating system package or component

freerdp
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 11 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU27971

Risk: Medium

CVSSv4.0: 7.7 [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]

CVE-ID: CVE-2020-11526

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Double Free

EUVDB-ID: #VU27970

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2020-11044

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU27974

Risk: High

CVSSv4.0: 6.8 [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]

CVE-ID: CVE-2020-11042

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Out-of-bounds read

EUVDB-ID: #VU29363

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2020-11095

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Out-of-bounds read

EUVDB-ID: #VU27980

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2020-11045

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Out-of-bounds read

EUVDB-ID: #VU27987

Risk: High

CVSSv4.0: 4.8 [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]

CVE-ID: CVE-2020-11522

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Out-of-bounds write

EUVDB-ID: #VU27986

Risk: High

CVSSv4.0: 8.1 [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]

CVE-ID: CVE-2020-11524

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Out-of-bounds write

EUVDB-ID: #VU27988

Risk: High

CVSSv4.0: 8.1 [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]

CVE-ID: CVE-2020-11521

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Out-of-bounds read

EUVDB-ID: #VU27982

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2020-11525

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Integer overflow

EUVDB-ID: #VU27985

Risk: High

CVSSv4.0: 8.1 [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]

CVE-ID: CVE-2020-11523

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Memory leak

EUVDB-ID: #VU23150

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2019-17177

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due memory leak in "libfreerdp/codec/region.c" file when a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value. A remote attacker can cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

freerdp-devel: before 2.2.0-2

libwinpr-devel: before 2.2.0-2

freerdp-debuginfo: before 2.2.0-2

freerdp-help: before 2.2.0-2

libwinpr: before 2.2.0-2

freerdp-debugsource: before 2.2.0-2

freerdp: before 2.2.0-2

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1008


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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