libX11: buffer overflow in MakeBigReq macro
Published Apr 16, 2015
7.5
HIGHCVSS 2.0
EPSS 4.25%
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.
Affected products
No data.
Configuration 1
- 1.0.1
- 1.0.2
- 1.0.3
- 1.1
- 1.1
- 1.1
- 1.1.4
- 1.1.5
- 1.1.6
- 1.1.99.1
- 1.1.99.2
- 1.2
- 1.2.1
- 1.2.2
- 1.3
- 1.3.1
- 1.3.2
- 1.3.3
- 1.3.4
- 1.3.5
- 1.3.6
- 1.3.99.901
- 1.3.99.902
- 1.3.99.903
- 1.4.0
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.4
- 1.4.99.901
- 1.4.99.902
- 1.5.0
- 1.5.99.901
- 1.5.99.902
Configuration 2
- 12.04
- 14.04
- 14.10
- 7.0
Configuration 3
- 6.0
- 6.1
- 6.3
- 6.4
- 6.5.1
- 6.6
- 6.7
- 6.8.0
- 6.8.1
- 6.8.2
- 6.9
No data.
Red Hat Enterprise Linux 6
libX11-0:1.6.0-2.2.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXcursor-0:1.1.14-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXext-0:1.3.2-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXfixes-0:5.0.1-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXi-0:1.7.2-2.2.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXinerama-0:1.1.3-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXp-0:1.0.2-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXrandr-0:1.4.1-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXrender-0:0.9.8-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXres-0:1.0.7-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXt-0:1.1.4-6.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXtst-0:1.2.2-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXv-0:1.0.9-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXvMC-0:1.0.8-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXxf86dga-0:1.1.4-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libXxf86vm-0:1.1.3-2.1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libdmx-0:1.1.3-3.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
libxcb-0:1.9.1-2.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
xcb-proto-0:1.8-3.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
xkeyboard-config-0:2.11-1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
xorg-x11-proto-devel-0:7.7-9.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 6
xorg-x11-xtrans-devel-0:1.3.4-1.el6
Fixed · RHSA-2014:1436
Red Hat Enterprise Linux 5
libX11
Will not fix
Red Hat Enterprise Linux 7
libX11
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libX11-0:1.6.0-2.2.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXcursor-0:1.1.14-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXext-0:1.3.2-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXfixes-0:5.0.1-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXi-0:1.7.2-2.2.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXinerama-0:1.1.3-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXp-0:1.0.2-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXrandr-0:1.4.1-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXrender-0:0.9.8-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXres-0:1.0.7-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXt-0:1.1.4-6.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXtst-0:1.2.2-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXv-0:1.0.9-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXvMC-0:1.0.8-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXxf86dga-0:1.1.4-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libXxf86vm-0:1.1.3-2.1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libdmx-0:1.1.3-3.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | libxcb-0:1.9.1-2.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | xcb-proto-0:1.8-3.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | xkeyboard-config-0:2.11-1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | xorg-x11-proto-devel-0:7.7-9.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 6 | xorg-x11-xtrans-devel-0:1.3.4-1.el6 | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux 5 | libX11 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | libX11 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of libX11 package as shipped with Red Hat Enterprise Linux 7. This issue was was fixed in Red Hat Enterprise Linux 6 via the following security advisory: https://rhn.redhat.com/errata/RHSA-2014-1436.html This issue affects the version of libX11 package as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.25% (0.04251) | 90.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.28% (0.04282) | 89.80th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.67% (0.01667) | 80.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.60% (0.03604) | 79.40th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.67% (0.01667) | 80.84th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.11% (0.01111) | 85.18th | v3 (v2023.03.01) |
| Jul 17, 2023 | 1.33% (0.01331) | 84.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.79% (0.01794) | 86.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (11)
- http://lists.x.org/archives/xorg-announce/2015-April/002561.html mailing-listx_refsource_MLISTPatchVendor Advisory
- http://seclists.org/oss-sec/2015/q2/81 mailing-listx_refsource_MLISTThird Party AdvisoryVDB Entry
- http://www.debian.org/security/2015/dsa-3224 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/73962 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2568-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2013-7439 Vendor Advisory
- https://bugs.freedesktop.org/show_bug.cgi?id=56508 x_refsource_CONFIRMIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1209943 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-7439
- https://www.cve.org/CVERecord?id=CVE-2013-7439
| Link | Providers | Tags |
|---|---|---|
| http://lists.x.org/archives/xorg-announce/2015-April/002561.html | mailing-listx_refsource_MLISTPatchVendor Advisory | |
| http://seclists.org/oss-sec/2015/q2/81 | mailing-listx_refsource_MLISTThird Party AdvisoryVDB Entry | |
| http://www.debian.org/security/2015/dsa-3224 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/73962 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-2568-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2013-7439 | Vendor Advisory | |
| https://bugs.freedesktop.org/show_bug.cgi?id=56508 | x_refsource_CONFIRMIssue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1209943 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-7439 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-7439 |
Change history (0)
No recorded changes yet.