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RHSA-2008:0575

Vulnerability from csaf_redhat - Published: 2008-07-24 17:15 - Updated: 2026-06-25 10:35
Summary
Red Hat Security Advisory: rdesktop security update
Severity
Moderate
Notes
Topic: An updated rdesktop package that fixes a security issue is now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Details: rdesktop is an open source client for Microsoft Windows NT Terminal Server and Microsoft Windows 2000 and 2003 Terminal Services, capable of natively using the Remote Desktop Protocol (RDP) to present the user's NT desktop. No additional server extensions are required. An integer underflow and integer signedness issue were discovered in the rdesktop. If an attacker could convince a victim to connect to a malicious RDP server, the attacker could cause the victim's rdesktop to crash or, possibly, execute an arbitrary code. (CVE-2008-1801, CVE-2008-1803) Users of rdesktop should upgrade to these updated packages, which contain a backported patches to resolve these issues.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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 arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.

5.4 ()
AV:A/AC:M/Au:N/C:P/I:P/A:P
CWE-190 - Integer Overflow or Wraparound
Affected products
Product Identifier Version Remediation
Unresolved product id: 5Client:rdesktop-0:1.4.1-6.i386 —
Vendor Fix fix
Unresolved product id: 5Client:rdesktop-0:1.4.1-6.src —
Vendor Fix fix
Unresolved product id: 5Client:rdesktop-0:1.4.1-6.x86_64 —
Vendor Fix fix
Unresolved product id: 5Client:rdesktop-debuginfo-0:1.4.1-6.i386 —
Vendor Fix fix
Unresolved product id: 5Client:rdesktop-debuginfo-0:1.4.1-6.x86_64 —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-0:1.4.1-6.i386 —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-0:1.4.1-6.ia64 —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-0:1.4.1-6.ppc —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-0:1.4.1-6.s390x —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-0:1.4.1-6.src —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-0:1.4.1-6.x86_64 —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-debuginfo-0:1.4.1-6.i386 —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-debuginfo-0:1.4.1-6.ia64 —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-debuginfo-0:1.4.1-6.ppc —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-debuginfo-0:1.4.1-6.s390x —
Vendor Fix fix
Unresolved product id: 5Server:rdesktop-debuginfo-0:1.4.1-6.x86_64 —
Vendor Fix fix
Threats
Impact Moderate
CVE-2008-1803

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.

5.4 ()
AV:A/AC:M/Au:N/C:P/I:P/A:P
Affected products
Fixed 16 products, the same list as for CVE-2008-1801
Threats
Impact Moderate
References
To clipboard 

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      "discovery_date": "2008-05-07T00:00:00+00:00",
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        {
          "category": "description",
          "text": "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 arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.",
          "title": "Vulnerability description"
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        {
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          "text": "rdesktop: iso_recv_msg() Integer Underflow Vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2008-1801",
          "url": "https://www.cve.org/CVERecord?id=CVE-2008-1801"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2008-1801",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-1801"
        }
      ],
      "release_date": "2008-05-07T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2008-07-24T17:15:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.\n\nThis update is available via Red Hat Network.  Details on how to use\nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/FAQ_58_10188",
          "product_ids": [
            "5Client:rdesktop-0:1.4.1-6.i386",
            "5Client:rdesktop-0:1.4.1-6.src",
            "5Client:rdesktop-0:1.4.1-6.x86_64",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.x86_64",
            "5Server:rdesktop-0:1.4.1-6.i386",
            "5Server:rdesktop-0:1.4.1-6.ia64",
            "5Server:rdesktop-0:1.4.1-6.ppc",
            "5Server:rdesktop-0:1.4.1-6.s390x",
            "5Server:rdesktop-0:1.4.1-6.src",
            "5Server:rdesktop-0:1.4.1-6.x86_64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ia64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ppc",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.s390x",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2008:0575"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "5Client:rdesktop-0:1.4.1-6.i386",
            "5Client:rdesktop-0:1.4.1-6.src",
            "5Client:rdesktop-0:1.4.1-6.x86_64",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.x86_64",
            "5Server:rdesktop-0:1.4.1-6.i386",
            "5Server:rdesktop-0:1.4.1-6.ia64",
            "5Server:rdesktop-0:1.4.1-6.ppc",
            "5Server:rdesktop-0:1.4.1-6.s390x",
            "5Server:rdesktop-0:1.4.1-6.src",
            "5Server:rdesktop-0:1.4.1-6.x86_64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ia64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ppc",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.s390x",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "rdesktop: iso_recv_msg() Integer Underflow Vulnerability"
    },
    {
      "cve": "CVE-2008-1803",
      "discovery_date": "2008-05-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "445829"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "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.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "rdesktop: channel_process() Integer Signedness Vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "5Client:rdesktop-0:1.4.1-6.i386",
          "5Client:rdesktop-0:1.4.1-6.src",
          "5Client:rdesktop-0:1.4.1-6.x86_64",
          "5Client:rdesktop-debuginfo-0:1.4.1-6.i386",
          "5Client:rdesktop-debuginfo-0:1.4.1-6.x86_64",
          "5Server:rdesktop-0:1.4.1-6.i386",
          "5Server:rdesktop-0:1.4.1-6.ia64",
          "5Server:rdesktop-0:1.4.1-6.ppc",
          "5Server:rdesktop-0:1.4.1-6.s390x",
          "5Server:rdesktop-0:1.4.1-6.src",
          "5Server:rdesktop-0:1.4.1-6.x86_64",
          "5Server:rdesktop-debuginfo-0:1.4.1-6.i386",
          "5Server:rdesktop-debuginfo-0:1.4.1-6.ia64",
          "5Server:rdesktop-debuginfo-0:1.4.1-6.ppc",
          "5Server:rdesktop-debuginfo-0:1.4.1-6.s390x",
          "5Server:rdesktop-debuginfo-0:1.4.1-6.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2008-1803"
        },
        {
          "category": "external",
          "summary": "RHBZ#445829",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=445829"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2008-1803",
          "url": "https://www.cve.org/CVERecord?id=CVE-2008-1803"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2008-1803",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-1803"
        }
      ],
      "release_date": "2008-05-07T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2008-07-24T17:15:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.\n\nThis update is available via Red Hat Network.  Details on how to use\nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/FAQ_58_10188",
          "product_ids": [
            "5Client:rdesktop-0:1.4.1-6.i386",
            "5Client:rdesktop-0:1.4.1-6.src",
            "5Client:rdesktop-0:1.4.1-6.x86_64",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.x86_64",
            "5Server:rdesktop-0:1.4.1-6.i386",
            "5Server:rdesktop-0:1.4.1-6.ia64",
            "5Server:rdesktop-0:1.4.1-6.ppc",
            "5Server:rdesktop-0:1.4.1-6.s390x",
            "5Server:rdesktop-0:1.4.1-6.src",
            "5Server:rdesktop-0:1.4.1-6.x86_64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ia64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ppc",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.s390x",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2008:0575"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "5Client:rdesktop-0:1.4.1-6.i386",
            "5Client:rdesktop-0:1.4.1-6.src",
            "5Client:rdesktop-0:1.4.1-6.x86_64",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Client:rdesktop-debuginfo-0:1.4.1-6.x86_64",
            "5Server:rdesktop-0:1.4.1-6.i386",
            "5Server:rdesktop-0:1.4.1-6.ia64",
            "5Server:rdesktop-0:1.4.1-6.ppc",
            "5Server:rdesktop-0:1.4.1-6.s390x",
            "5Server:rdesktop-0:1.4.1-6.src",
            "5Server:rdesktop-0:1.4.1-6.x86_64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.i386",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ia64",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.ppc",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.s390x",
            "5Server:rdesktop-debuginfo-0:1.4.1-6.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "rdesktop: channel_process() Integer Signedness Vulnerability"
    }
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.