Ultravnc vulnerabilities

CVE-2022-24750 [HIGH] CWE-269 CVE-2022-24750: UltraVNC is a free and open source remote pc access software. A vulnerability has been found in vers UltraVNC is a free and open source remote pc access software. A vulnerability has been found in versions prior to 1.3.8.0 in which the DSM plugin module, which allows a local authenticated user to achieve local privilege escalation (LPE) on a vulnerable system. The vulnerability has been fixed to allow loading of plugins from the installed directory.

CVE-2018-15361 [CRITICAL] CWE-124 CVE-2018-15361: UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentiall UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.

CVE-2019-8260 [CRITICAL] CWE-125 CVE-2019-8260: UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.

CVE-2019-8258 [CRITICAL] CWE-122 CVE-2019-8258: UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results cod UltraVNC revision 1198 has a heap buffer overflow vulnerability in VNC client code which results code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.

CVE-2019-8261 [CRITICAL] CWE-125 CVE-2019-8261: UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC code inside client CoRRE decode UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC code inside client CoRRE decoder, caused by multiplication overflow. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200.

CVE-2019-8262 [CRITICAL] CWE-122 CVE-2019-8262: UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside U UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which results in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1204.

CVE-2019-8259 [HIGH] CWE-665 CVE-2019-8259: UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow an a UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have

CVE-2010-5248 [MEDIUM] CVE-2010-5248: Untrusted search path vulnerability in UltraVNC 1.0.8.2 allows local users to gain privileges via a Untrusted search path vulnerability in UltraVNC 1.0.8.2 allows local users to gain privileges via a Trojan horse vnclang.dll file in the current working directory, as demonstrated by a directory that contains a .vnc file. NOTE: some of these details are obtained from third party information.

CVE-2009-0388 [CRITICAL] CWE-189 CVE-2009-0388: Multiple integer signedness errors in (1) UltraVNC 1.0.2 and 1.0.5 and (2) TightVnc 1.3.9 allow remo 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::CheckFileZipBu

CVE-2008-5001 [CRITICAL] CVE-2008-5001: Multiple stack-based buffer overflows in multiple functions in vncviewer/FileTransfer.cpp in vncview Multiple stack-based buffer overflows in multiple functions in vncviewer/FileTransfer.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified parameters, a different issue than CVE-2008-0

CVE-2008-0610 [CRITICAL] CWE-119 CVE-2008-0610: Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a modified size value.

CVE-2006-2206 [CRITICAL] CVE-2006-2206: The MS-Logon authentication scheme in UltraVNC (aka Ultr@VNC) 1.0.1 uses weak encryption (XOR) for c The MS-Logon authentication scheme in UltraVNC (aka Ultr@VNC) 1.0.1 uses weak encryption (XOR) for challenge/response, which allows remote attackers to gain privileges by sniffing and decrypting passwords.