Libvncserver : Security Vulnerabilities, CVEs, CVSS score >= 6
Multiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in LibVNCServer 0.9.9 and earlier allow remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long file or (2) directory name or the (3) FileTime attribute in a rfbFileTransferOffer message.
Max CVSS
6.5
EPSS Score
2.19%
Published
2014-09-30
Updated
2020-10-23
The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.
Max CVSS
7.5
EPSS Score
1.11%
Published
2014-12-15
Updated
2020-10-23
Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.
Max CVSS
7.5
EPSS Score
1.01%
Published
2014-09-30
Updated
2020-10-23
auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.
Max CVSS
7.5
EPSS Score
4.93%
Published
2006-07-18
Updated
2022-05-13
4 vulnerabilities found