Integer signedness error in the xrealloc function (rdesktop.c) in RDesktop 1.5.0 allows…
Priority MEDIUM 50CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
Integer signedness error in the xrealloc function (rdesktop.c) in RDesktop 1.5.0 allows remote attackers to execute arbitrary code via unknown parameters that trigger a heap-based overflow. NOTE: the role of the channel_process function was not specified by the original researcher.
Why it matters now
EPSS 0.06737 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2008:0575 Released 2008-07-24 · Red Hat rating Moderaterdesktop security update
- Red Hat Enterprise Linux (v. 5 server) rdesktop-1.4.1-6, rdesktop-1.4.1-6.i386, rdesktop-1.4.1-6.ia64 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) rdesktop-1.4.1-6, rdesktop-1.4.1-6.i386
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2008:0575 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2008:0575 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1803
- 2026-10-03 Alias added: GHSA-h6mv-mc2j-c734
References
Exploit 1
Patch 1
Advisory 12
More Rdesktop vulnerabilities
- TI-2008-01728 Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote… CVSS 2.0HIGH 9.3
- TI-2008-01729 Buffer overflow in the process_redirect_pdu (rdp.c) function in rdesktop 1.5.0 allows… CVSS 2.0HIGH 9.3
- TI-2018-14304 rdesktop versions up to and including v1.8.3 contain a Buffer Overflow over the global… CVSS 3.0CRITICAL 9.8
- TI-2018-14303 rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a… CVSS 3.0CRITICAL 9.8
- TI-2018-14302 rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a… CVSS 3.0CRITICAL 9.8
- TI-2018-14299 rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2008-1803 · CVE Program
- CVE-2008-1803 · NVD
- FIRST EPSS
- GHSA-h6mv-mc2j-c734 · GitHub Advisory Database · CC BY 4.0
- CVE-2008-1803 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences