FreeRDP prior to version 2.0.0-rc4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function gdi_Bitmap_Decompress
FreeRDP prior to version 2.0.0-rc4 contains an Integer Overflow that leads to a Heap-Based Buffer Overflow in function gdi_Bitmap_Decompress() and results in a memory corruption and probably even a remote code execution.
- Published
- Nov 29, 2018
- Updated
- Jun 16, 2026
- EPSS
- 8.4% · 95th percentile
- CWE
- CWE-680
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Report tools
Action score
42
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 3 / 30 · 8.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| freerdp | freerdp | cpe:2.3:a:freerdp:freerdp |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux14.04
- canonical ubuntu linux16.04
- canonical ubuntu linux18.04
- canonical ubuntu linux18.10
- debian debian linux8.0
- freerdp freerdpup to 1.2.0 inclusive
- freerdp freerdp2.0.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux eus7.6
- redhat enterprise linux server7.0
- redhat enterprise linux server aus7.6
- redhat enterprise linux server tus7.6
- redhat enterprise linux workstation7.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (checkpoint). Independent of NVD's CPE analysis and usually ahead of it.
Check Point Software Technologies Ltd. FreeRDP
- All versions prior to 2.0.0-rc4affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | freerdp2 | before 2.0.0~git20181120.1.e21b72c95+dfsg1-1 | 2.0.0~git20181120.1.e21b72c95+dfsg1-1 |
| Debian:8 | freerdp | before 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3 | 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3 |
| openSUSE:Tumbleweed | freerdp2 | before 2.4.0-2.1 | 2.4.0-2.1 |
| Red Hat:enterprise_linux:7::client | freerdp | before 0:1.0.2-15.el7_6.1 | 0:1.0.2-15.el7_6.1 |
| Red Hat:enterprise_linux:7::client | freerdp-debuginfo | before 0:1.0.2-15.el7_6.1 | 0:1.0.2-15.el7_6.1 |
| Red Hat:enterprise_linux:7::client | freerdp-devel | before 0:1.0.2-15.el7_6.1 | 0:1.0.2-15.el7_6.1 |
| Red Hat:enterprise_linux:7::client | freerdp-libs | before 0:1.0.2-15.el7_6.1 | 0:1.0.2-15.el7_6.1 |
| Red Hat:enterprise_linux:7::client | freerdp-plugins | before 0:1.0.2-15.el7_6.1 | 0:1.0.2-15.el7_6.1 |
| SUSE:Linux Enterprise Desktop 12 SP3 | freerdp | before 2.0.0~git.1463131968.4e66df7-12.8.1 | 2.0.0~git.1463131968.4e66df7-12.8.1 |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | freerdp | before 2.1.2-12.20.1 | 2.1.2-12.20.1 |
| SUSE:Linux Enterprise Workstation Extension 12 SP5 | vinagre | before 3.20.2-16.3.3 | 3.20.2-16.3.3 |
| SUSE:Linux Enterprise Workstation Extension 15 | freerdp | before 2.0.0~rc4-3.3.1 | 2.0.0~rc4-3.3.1 |
Same product
freerdp: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-8788FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory co41Plan
- CVE-2018-8786FreeRDP prior to version 2.0.0-rc4 contains an Integer Truncation that leads to a Heap-Based Buffer Overflow in function update_read_bitmap_41Plan
- CVE-2018-8785FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress() that results in a memory corruption a41Plan
- CVE-2018-8784FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corr41Plan
- CVE-2024-32460FreeRDP Out-Of-Bounds Read in interleaved_decompress40Plan
- CVE-2024-32459FreeRDP Out-Of-Bounds Read in ncrush_decompress40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:freerdp | 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3 · Debian:8 | Package registry (OSV) |
| debian:freerdp2 | 2.0.0~git20181120.1.e21b72c95+dfsg1-1 · Debian:12 | Package registry (OSV) |
| opensuse:freerdp2 | 2.4.0-2.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:freerdp | 0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:freerdp-debuginfo | 0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:freerdp-devel | 0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:freerdp-libs | 0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:freerdp-plugins | 0:1.0.2-15.el7_6.1 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:freerdp | 2.0.0~git.1463131968.4e66df7-12.8.1 · SUSE:Linux Enterprise Desktop 12 SP3 | Package registry (OSV) |
| suse:vinagre | 3.20.2-16.3.3 · SUSE:Linux Enterprise Workstation Extension 12 SP5 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-680 · Integer Overflow to Buffer OverflowCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
- Overflow Variables and TagsCAPEC-46likelihood: High · High
- Buffer Overflow via Parameter ExpansionCAPEC-47likelihood: Medium · High
- String Format Overflow in syslog()CAPEC-67likelihood: High · Very High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- www.securityfocus.com/bid/106938
- access.redhat.com/errata/RHSA-2019:0697
- github.com/FreeRDP/FreeRDP/commit/09b9d4f1994a674c4ec85b4947aa656eda1aed8a
- lists.debian.org/debian-lts-announce/2019/02/msg00015.html
- usn.ubuntu.com/3845-1/
- usn.ubuntu.com/3845-2/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.