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    CVE-2009-0388

    Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remote VNC servers to cause a denial of service (heap corruption and application crash) or possibly execute arbitrary code via a large length value in a message, related to the (a) ClientConnection::CheckBufferSize and (b) ClientConnection::CheckFileZipBufferSize functions in ClientConnection.cpp.

    Published:Feb 4, 2009
    Last Modified:Apr 23, 2026
    EPS:Feb 4, 2009
    EPSS Score:0.48323
    CVSS Score:10

    Affected Products

    Vendor
    Tightvnc
    Product
    Tightvnc
    Vendor
    Ultravnc
    Product
    Ultravnc

    Exploits

    http://www.coresecurity.com/content/vnc-integer-overflowshttp://www.securityfocus.com/bid/33568http://www.coresecurity.com/content/vnc-integer-overflowshttp://www.securityfocus.com/bid/33568https://www.exploit-db.com/exploits/8024https://www.exploit-db.com/exploits/7990

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2024-42049 (CVSS 9.1) — TightVNC (Server for Windows) before 2.8.84 allows attackers to connect to the control pipe via a network conn…
    CVE-2023-27830 (CVSS 9) — TightVNC before v2.8.75 allows attackers to escalate privileges on the host operating system via replacing leg…
    CVE-2021-42785 (CVSS 9.8) — Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrar…
    CVE-2019-15680 (CVSS 7.5) — TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial…
    CVE-2019-15679 (CVSS 9.8) — TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can pote…
    CVE-2019-15678 (CVSS 9.8) — TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially …
    CVE-2019-8287 (CVSS 9.8) — TightVNC code version 1.3.10 contains global buffer overflow in HandleCoRREBBP macro function, which can poten…
    CVE-2002-1848 (CVSS 2.1) — TightVNC before 1.2.4 running on Windows stores unencrypted passwords in the password text control of the WinV…
    CVE-2002-1511 (CVSS 5) — The vncserver wrapper for vnc before 3.3.3r2-21 uses the rand() function instead of srand(), which causes vncs…
    CVE-2002-0971 (CVSS 4.6) — Vulnerability in VNC, TightVNC, and TridiaVNC allows local users to execute arbitrary code as LocalSystem by u…

    References

    http://forum.ultravnc.info/viewtopic.php?t=14654
    http://secunia.com/advisories/33807
    http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564
    http://www.coresecurity.com/content/vnc-integer-overflows
    http://www.securityfocus.com/archive/1/500632/100/0/threaded
    http://www.securityfocus.com/bid/33568
    http://www.vupen.com/english/advisories/2009/0321
    http://www.vupen.com/english/advisories/2009/0322
    https://www.exploit-db.com/exploits/7990
    https://www.exploit-db.com/exploits/8024
    http://forum.ultravnc.info/viewtopic.php?t=14654
    http://secunia.com/advisories/33807
    http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight?view=rev&revision=3564
    http://www.coresecurity.com/content/vnc-integer-overflows
    http://www.securityfocus.com/archive/1/500632/100/0/threaded
    http://www.securityfocus.com/bid/33568
    http://www.vupen.com/english/advisories/2009/0321
    http://www.vupen.com/english/advisories/2009/0322
    https://www.exploit-db.com/exploits/7990
    https://www.exploit-db.com/exploits/8024

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High