CVE-2008-1801

Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute…

published May 12, 2008

CVSS
—
EPSS
13%
Percentile
96.3
In the wild
Unconfirmed
What it is

⚠️ An integer underflow is like a sneaky trickster that could lead to a crash in your remote desktop session! Think of it as a delivery mishap where an order arrives with a tiny label, causing a mix-up that crashes the whole kitchen operation. The iso_recv_msg function in rdesktop 1.5.0 is vulnerable because it doesn’t properly handle these small length fields, leaving the door open for trouble! An attacker could exploit this flaw to send a specially crafted RDP request, resulting in a denial of service by crashing the application. In the worst-case scenario, this could allow for arbitrary code execution, turning your remote desktop into an unwelcome playground for attackers!

Put simply

Think of it as a delivery mishap where an order arrives with a tiny label, causing a mix-up that crashes the whole kitchen operation. The iso_recv_msg function in rdesktop 1.5.0 is vulnerable because it doesn’t properly handle these small length fields, leaving the door open for trouble! This vulnerability arises from an integer underflow in the iso_recv_msg function, where a small length field in RDP requests is mishandled. This can lead to unexpected behavior, including application crashes and potential execution of arbitrary code.

What to do

An attacker could exploit this flaw to send a specially crafted RDP request, resulting in a denial of service by crashing the application. In the worst-case scenario, this could allow for arbitrary code execution, turning your remote desktop into an unwelcome playground for attackers! To protect against this vulnerability, update to the latest version of rdesktop that addresses this issue. Additionally, ensure that you apply strict input validation for any RDP requests to minimize risks. Keeping your remote desktop applications up-to-date is crucial! You've got this! By taking these steps, you can safeguard your remote sessions effectively. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.13128 · 96.3th percentile
Published
2008-05-12T16:00Z
EPSS history
Timeline
  • 12 MAY 16:00Z
    Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute…
    cvelistv5