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CVE-2013-1983

18
FAUCET Score

CVE-2013-1983 describes an integer overflow vulnerability in X.org libXfixes versions 5.0 and earlier, specifically within the XFixesGetCursorImage function. This flaw allows a malicious X server to cause insufficient memory allocation, leading to a buffer overflow in affected systems. With a CVSS score of 6.8, this vulnerability is moderately severe, requiring medium attack complexity and potentially impacting confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0CPE matchmatch criteria
cpe:2.3:a:x:libxfixes:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:x:libxfixes:4.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:x:libxfixes:4.0.1:*:*:*:*:*:*:*
4.0.2CPE matchmatch criteria
cpe:2.3:a:x:libxfixes:4.0.2:*:*:*:*:*:*:*
4.0.3CPE matchmatch criteria
cpe:2.3:a:x:libxfixes:4.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.14%
Probability of exploitation in next 30 days
EPSS Percentile
80.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0214 is in the 67th percentile among its peer group of 19,954 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (23)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libdmx-0:1.1.3-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libX11-0:1.6.0-2.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxcb-0:1.9.1-2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXcursor-0:1.1.14-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXext-0:1.3.2-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXfixes-0:5.0.1-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXi-0:1.7.2-2.2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXinerama-0:1.1.3-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXp-0:1.0.2-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXrandr-0:1.4.1-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXrender-0:0.9.8-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXres-0:1.0.7-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXt-0:1.1.4-6.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXtst-0:1.2.2-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXv-0:1.0.9-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXvMC-0:1.0.8-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXxf86dga-0:1.1.4-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libXxf86vm-0:1.1.3-2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xcb-proto-0:1.8-3.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xkeyboard-config-0:2.11-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xorg-x11-proto-devel-0:7.7-9.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xorg-x11-xtrans-devel-0:1.3.4-1.el6
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libXfixes

Vendor Advisories (1)

redhatCVE-2013-1983Moderate

libXfixes: Integer overflow leading to heap-based buffer overflow

May 23, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2013-May/106794.html
lists.opensuse.org / opensuse-updates/2013-06/msg00144.html
debian.org / security/2013/dsa-2676
openwall.com / lists/oss-security/2013/05/23/3
ubuntu.com / usn/USN-1858-1
x.org / wiki/Development/Security/Advisory-2013-05-23
Vendor Advisory