Vulnerabilities (CVE)

Filtered by vendor Libvncserver Project Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-20788 3 Canonical, Libvncserver Project, Opensuse 3 Ubuntu Linux, Libvncserver, Leap 2021-12-14 7.5 HIGH 9.8 CRITICAL
libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.
CVE-2017-18922 4 Canonical, Fedoraproject, Libvncserver Project and 1 more 4 Ubuntu Linux, Fedora, Libvncserver and 1 more 2021-12-14 7.5 HIGH 9.8 CRITICAL
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.
CVE-2018-20750 3 Canonical, Debian, Libvncserver Project 3 Ubuntu Linux, Debian Linux, Libvncserver 2021-12-14 7.5 HIGH 9.8 CRITICAL
LibVNC through 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.
CVE-2016-9941 1 Libvncserver Project 1 Libvncserver 2020-10-23 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in rfbproto.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message containing a subrectangle outside of the client drawing area.
CVE-2016-9942 1 Libvncserver Project 1 Libvncserver 2020-10-23 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds what is specified by the tile dimensions.
CVE-2018-7225 4 Canonical, Debian, Libvncserver Project and 1 more 9 Ubuntu Linux, Debian Linux, Libvncserver and 6 more 2020-10-23 7.5 HIGH 9.8 CRITICAL
An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.