Search criteria
7 vulnerabilities by ultravnc
CVE-2022-24750 (GCVE-0-2022-24750)
Vulnerability from cvelistv5 – Published: 2022-03-10 00:00 – Updated: 2025-04-23 18:55
VLAI?
Title
Low privilege user is able to exploit the service and gain SYSTEM privileges in UltraVNC server
Summary
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. Affected users should upgrade their UltraVNC to 1.3.8.1. Users unable to upgrade should not install and run UltraVNC server as a service. It is advisable to create a scheduled task on a low privilege account to launch WinVNC.exe instead. There are no known workarounds if winvnc needs to be started as a service.
Severity ?
8.8 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
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CVE-2019-8259 (GCVE-0-2019-8259)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 20:59
VLAI?
Summary
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 been fixed in revision 1199.
Severity ?
No CVSS data available.
CWE
- CWE-665 - Improper Initialization
Assigner
References
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CVE-2019-8261 (GCVE-0-2019-8261)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-17 03:12
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
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CVE-2018-15361 (GCVE-0-2018-15361)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 17:07
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- CWE-124 - Buffer Underwrite
Assigner
References
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CVE-2019-8258 (GCVE-0-2019-8258)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 19:15
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
| URL | Tags | ||||||||||
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CVE-2019-8260 (GCVE-0-2019-8260)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 20:22
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||||||||||||||
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CVE-2019-8262 (GCVE-0-2019-8262)
Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 16:49
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
| URL | Tags | |||||||||||||||||||
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"datePublished": "2019-03-05T15:00:00.000Z",
"dateReserved": "2019-02-12T00:00:00.000Z",
"dateUpdated": "2024-09-16T16:49:03.600Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}