Description
Multiple off-by-one errors in the (1) MakeBigReq and (2) SetReqLen macros in include/X11/Xlibint.h in X11R6.x and libX11 before 1.6.0 allow remote attackers to have unspecified impact via a crafted request, which triggers a buffer overflow.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2568-1
Vendor Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/73962
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2015/dsa-3224
Third Party Advisory, VDB Entry mailing-list
x_refsource_mlist
http://seclists.org/oss-sec/2015/q2/81
Patch, Vendor Advisory mailing-list
x_refsource_mlist
http://lists.x.org/archives/xorg-announce/2015-April/002561.html
Issue Tracking x_refsource_confirm
https://bugs.freedesktop.org/show_bug.cgi?id=56508
Scores
EPSS
0.0428
EPSS Percentile
90.0%
Details
CWE
CWE-189
Status
published
Products (47)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
14.10
debian/debian_linux
7.0
x.org/libx11
1.0.1
x.org/libx11
1.0.2
x.org/libx11
1.0.3
x.org/libx11
1.1 (3 CPE variants)
x.org/libx11
1.1.4
x.org/libx11
1.1.5
... and 37 more
Published
Apr 16, 2015
Tracked Since
Feb 18, 2026