25 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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High 8.8
LibVNCServer 0.9.12 release and earlier contains heap buffer overflow vulnerability within the HandleCursorShape() func…
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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 —
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 —
scan.c in x11vnc 0.9.16 uses IPC_CREAT|0777 in shmget calls, which allows access by actors other than the current user.
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Unscored —
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A…
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncclient/tls_openssl.c has a NULL pointer dereference.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. An improperly closed TCP connection causes an infinite loop in l…
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/scale.c has a pixel_value integer overflow.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/corre.c allows out-of-bounds access via encodings.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/hextile.c allows out-of-bounds access via encodings.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat size.
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Unscored —
libvncclient/sockets.c in LibVNCServer before 0.9.13 has a buffer overflow via a long socket filename.
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligne…
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Unscored —
An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) …
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Unscored —
libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer ove…
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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 —
LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, whic…