18 results · Feed
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High 8.8
libvncclient Tight decoder has an attacker-controlled heap out-of-bounds write
LibVNCClient is a library for easy implementation of a VNC client. In versions 0.9.12 through 0.9.15, a malicious (or man-in-the-middle) VNC server can force a connecting `libvncclient` to write attacker-controlled data past the end of its framebuffer. This i…
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High 8.8
LibVNCClient Tight Gradient decoding allows malicious server-triggered heap/stack OOB writes
LibVNCClient is a library for easy implementation of a VNC client. In 0.9.15 and earlier, LibVNCClient's Tight encoding decoder uses fixed-size 2048-pixel scratch buffers for the Gradient filter, but it does not reject Tight rectangles whose width is larger t…
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Medium 6.3
LibVNCServer httpd proxy NULL Pointer Dereference
LibVNCServer versions 0.9.15 and prior (fixed in commit dc78dee) contain null pointer dereference vulnerabilities in the HTTP proxy handlers within httpProcessInput() in httpd.c that allow remote attackers to cause a denial of service by sending specially cra…
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Medium 6.9
LibVNCServer UltraZip Encoding Heap Out-of-bounds Read
LibVNCServer versions 0.9.15 and prior (fixed in commit 009008e) contain a heap out-of-bounds read vulnerability in the UltraZip encoding handler that allows a malicious VNC server to cause information disclosure or application crash. Attackers can exploit im…
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Unscored —
libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().
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Unscored —
Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59
Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.
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Unscored —
A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a spec…
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Unscored —
TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of Syste…
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Unscored —CVE-2019-15679 EPSS 12%
TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially r…
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Unscored —CVE-2019-15678 EPSS 13%
TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result co…
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Unscored —CVE-2019-8287 EPSS 19%
TightVNC code version 1.3.10 contains global buffer overflow in HandleCoRREBBP macro function, which can potentially re…
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Unscored —
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, whic…
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Unscored —
LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for…
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Unscored —
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside str…
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Unscored —
LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vu…
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Unscored —
LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC cl…
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Unscored —
An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitiz…
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Unscored —
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not prope…