CVE-2018-8788
freerdp: Out-of-bounds write in nsc_rle_decode() function
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
FreeRDP 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 corruption and possibly even a remote code execution.
FreeRDP en versiones anteriores a la 2.0.0-rc4 contiene una escritura fuera de límites de hasta 4 bytes en la función nsc_rle_decode() que resulta en una corrupción de memoria y, probablemente, incluso en la ejecución remota de código.
A flaw was found in freerdp in versions before 2.0.0-rc4. An out-of-bounds write of up to 4 bytes in the nsc_rle_decode() function results in a memory corruption. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applies to Ubuntu 18.04 LTS and Ubuntu 18.10. Eyal Itkin discovered FreeRDP incorrectly handled bitmaps. A malicious server could use this issue to cause FreeRDP to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2018-03-19 CVE Reserved
- 2018-11-29 CVE Published
- 2024-09-16 CVE Updated
- 2024-09-16 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/106938 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/02/msg00015.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients | 2024-09-16 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659 | 2019-06-03 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:0697 | 2019-06-03 | |
| https://usn.ubuntu.com/3845-1 | 2019-06-03 | |
| https://usn.ubuntu.com/3845-2 | 2019-06-03 | |
| https://access.redhat.com/security/cve/CVE-2018-8788 | 2019-04-02 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1671363 | 2019-04-02 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Freerdp Search vendor "Freerdp" | Freerdp Search vendor "Freerdp" for product "Freerdp" | <= 1.2.0 Search vendor "Freerdp" for product "Freerdp" and version " <= 1.2.0" | - |
Affected
| ||||||
| Freerdp Search vendor "Freerdp" | Freerdp Search vendor "Freerdp" for product "Freerdp" | 2.0.0 Search vendor "Freerdp" for product "Freerdp" and version "2.0.0" | rc1 |
Affected
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| Freerdp Search vendor "Freerdp" | Freerdp Search vendor "Freerdp" for product "Freerdp" | 2.0.0 Search vendor "Freerdp" for product "Freerdp" and version "2.0.0" | rc2 |
Affected
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| Freerdp Search vendor "Freerdp" | Freerdp Search vendor "Freerdp" for product "Freerdp" | 2.0.0 Search vendor "Freerdp" for product "Freerdp" and version "2.0.0" | rc3 |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
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