CVE-2020-4031
Use-After-Free in gdi_SelectObject in FreeRDP
HIGH
7.5
CVSS Score
Published: June 22, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 03:19 AM UTC
5 products affected across 5 vendorsDebian LinuxFedoraUbuntu Linux
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
In FreeRDP before version 2.1.2, there is a use-after-free in gdi_SelectObject. All FreeRDP clients using compatibility mode with /relax-order-checks are affected. This is fixed in version 2.1.2.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 2.1.2
Affected range stops below 2.1.2, so it looks safe — our inference, not a vendor statement
Leap· openSUSEdrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
- http://www.freerdp.com/2020/06/22/2_1_2-released
- https://github.com/FreeRDP/FreeRDP/commit/6d86e20e1e7caaab4f0c7f89e36d32914dbccc52
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-gwcq-hpq2-m74g
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6Y35HBHG2INICLSGCIKNAR7GCXEHQACQ/
References (8)
Vendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlRelease NotesVendor Advisory
Source: [email protected]
http://www.freerdp.com/2020/06/22/2_1_2-releasedPatchThird Party Advisory
Source: [email protected]
https://github.com/FreeRDP/FreeRDP/commit/6d86e20e1e7caaab4f0c7f89e36d32914dbccc52MitigationThird Party Advisory
Source: [email protected]
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-gwcq-hpq2-m74gMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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