Vulnerabilities > X

DATE CVE VULNERABILITY TITLE RISK
2012-12-21 CVE-2012-1699 Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in multiple products
The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6.6 and XFree86 before 3.3.3 calls the SendErrToClient function with a mask value instead of a pointer, which allows local users to cause a denial of service (memory corruption and crash) or obtain potentially sensitive information from memory via a SetEventMask request that triggers an invalid pointer dereference.
local
low complexity
x xfree86 CWE-119
3.6
2012-09-05 CVE-2010-4819 Improper Input Validation vulnerability in X X.Org-Xserver 1.7/1.7.6.902/1.7.7
The ProcRenderAddGlyphs function in the Render extension (render/render.c) in X.Org xserver 1.7.7 and earlier allows local users to read arbitrary memory and possibly cause a denial of service (server crash) via unspecified vectors related to an "input sanitization flaw."
local
low complexity
x CWE-20
3.6
2011-08-19 CVE-2011-2895 Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in multiple products
The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.
network
freetype x freebsd netbsd openbsd CWE-119
critical
9.3
2011-04-08 CVE-2011-0465 Improper Input Validation vulnerability in multiple products
xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a (1) DHCP or (2) XDMCP message.
network
matthias-hopf x CWE-20
critical
9.3
2008-06-16 CVE-2008-2362 Numeric Errors vulnerability in X X11 R7.3
Multiple integer overflows in the Render extension in the X server 1.4 in X.Org X11R7.3 allow context-dependent attackers to execute arbitrary code via a (1) SProcRenderCreateLinearGradient, (2) SProcRenderCreateRadialGradient, or (3) SProcRenderCreateConicalGradient request with an invalid field specifying the number of bytes to swap in the request data, which triggers heap memory corruption.
network
low complexity
x CWE-189
critical
10.0
2008-06-16 CVE-2008-2360 Numeric Errors vulnerability in X X11 R7.3
Integer overflow in the AllocateGlyph function in the Render extension in the X server 1.4 in X.Org X11R7.3 allows context-dependent attackers to execute arbitrary code via unspecified request fields that are used to calculate a heap buffer size, which triggers a heap-based buffer overflow.
network
low complexity
x CWE-189
critical
9.0
2008-06-16 CVE-2008-1379 Numeric Errors vulnerability in X X11 R7.3
Integer overflow in the fbShmPutImage function in the MIT-SHM extension in the X server 1.4 in X.Org X11R7.3 allows context-dependent attackers to read arbitrary process memory via crafted values for a Pixmap width and height.
network
low complexity
x CWE-189
6.8
2008-06-16 CVE-2008-1377 Numeric Errors vulnerability in X X11 R7.3
The (1) SProcRecordCreateContext and (2) SProcRecordRegisterClients functions in the Record extension and the (3) SProcSecurityGenerateAuthorization function in the Security extension in the X server 1.4 in X.Org X11R7.3 allow context-dependent attackers to execute arbitrary code via requests with crafted length values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.
network
low complexity
x CWE-189
critical
9.0