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CVE-2013-4396

19
FAUCET Score

CVE-2013-4396 describes a use-after-free vulnerability in the doImageText function of the xorg-server module (versions prior to 1.14.4) within X.Org X11. This flaw allows remote authenticated users to trigger a denial of service or potentially execute arbitrary code by sending a crafted ImageText request that causes memory allocation failure. With a CVSS score of 6.5, it is considered medium severity, requiring authentication but being network-exploitable with low complexity, leading to potential partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:a:x:x.org_x11:6.0:*:*:*:*:*:*:*
6.1CPE matchmatch criteria
cpe:2.3:a:x:x.org_x11:6.1:*:*:*:*:*:*:*
6.3CPE matchmatch criteria
cpe:2.3:a:x:x.org_x11:6.3:*:*:*:*:*:*:*
6.4CPE matchmatch criteria
cpe:2.3:a:x:x.org_x11:6.4:*:*:*:*:*:*:*
6.5.1CPE matchmatch criteria
cpe:2.3:a:x:x.org_x11:6.5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.5MEDIUM

AV:N/AC:L/Au:S/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.08%
Probability of exploitation in next 30 days
EPSS Percentile
89.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0408 is in the 97th percentile among its peer group of 21,974 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, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (3)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xorg-x11-server-0:1.1.1-48.101.el5_10.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xorg-x11-server-0:1.13.0-11.1.el6_4.2
View patch

Vendor Advisories (1)

redhatCVE-2013-4396Important

xorg-x11-server: use-after-free flaw when handling ImageText requests

Oct 8, 2013

References

lists.opensuse.org / opensuse-updates/2013-10/msg00056.html
lists.opensuse.org / opensuse-updates/2013-10/msg00060.html
lists.x.org / archives/xorg-announce/2013-October/002332.html
Vendor Advisory
openwall.com / lists/oss-security/2013/10/08/6
rhn.redhat.com / errata/RHSA-2013-1426.html
bugzilla.redhat.com / show_bug.cgi
Patch
debian.org / security/2013/dsa-2784
securityfocus.com / bid/62892
ubuntu.com / usn/USN-1990-1