Multiple integer overflows in X.org libX11 1.5.99.901 (1.6 RC1) and earlier allow X…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Partial Red Hat: 8 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
Multiple integer overflows in X.org libX11 1.5.99.901 (1.6 RC1) and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the (1) XQueryFont, (2) _XF86BigfontQueryFont, (3) XListFontsWithInfo, (4) XGetMotionEvents, (5) XListHosts, (6) XGetModifierMapping, (7) XGetPointerMapping, (8) XGetKeyboardMapping, (9) XGetWindowProperty, (10) XGetImage, (11) LoadColornameDB, (12) XrmGetFileDatabase, (13) _XimParseStringFile, or (14) TransFileName functions.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:x:libx11:*:*:*:*:*:*:*:* | up to 1.5.99.901 | Vulnerable | X |
| cpe:2.3:a:x:libx11:1.5.0:*:*:*:*:*:*:* | 1.5.0 | Vulnerable | X |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:*:*:*:*:* | 10.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* | 12.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:* | 13.04 | Vulnerable | Canonical |
- cpe:2.3:a:x:libx11:*:*:*:*:*:*:*:* Versions up to 1.5.99.901 Vulnerable ·X
- cpe:2.3:a:x:libx11:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 Vulnerable ·X
- cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:*:*:*:*:* Versions 10.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* Versions 12.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:* Versions 13.04 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2014:1436 Released 2014-10-13 · Red Hat rating ModerateX11 client libraries security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) libX11-1.6.0-2.2.el6, libX11-common-1.6.0-2.2.el6, libXcursor-1.1.14-2.1.el6 +17
- Red Hat Enterprise Linux Desktop Optional (v. 6) libX11-devel-1.6.0-2.2.el6, libXcursor-devel-1.1.14-2.1.el6, libXext-devel-1.3.2-2.1.el6 +23
- Red Hat Enterprise Linux HPC Node (v. 6) libX11-1.6.0-2.2.el6, libX11-common-1.6.0-2.2.el6, libXcursor-1.1.14-2.1.el6 +12
- Red Hat Enterprise Linux HPC Node Optional (v. 6) libX11-devel-1.6.0-2.2.el6, libXcursor-devel-1.1.14-2.1.el6, libXext-devel-1.3.2-2.1.el6 +24
- Red Hat Enterprise Linux Server (v. 6) libX11-1.6.0-2.2.el6, libX11-1.6.0-2.2.el6.ppc, libX11-common-1.6.0-2.2.el6 +47
- Red Hat Enterprise Linux Server Optional (v. 6) libXres-devel-1.0.7-2.1.el6, libXres-devel-1.0.7-2.1.el6.ppc, libXvMC-devel-1.0.8-2.1.el6 +13
- Red Hat Enterprise Linux Workstation (v. 6) libX11-1.6.0-2.2.el6, libX11-common-1.6.0-2.2.el6, libX11-devel-1.6.0-2.2.el6 +32
- Red Hat Enterprise Linux Workstation Optional (v. 6) libXres-devel-1.0.7-2.1.el6, libXvMC-devel-1.0.8-2.1.el6, libXxf86dga-1.1.4-2.1.el6 +8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:1436 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2014:1436 |
Timeline
- 2026-10-02 Threatist record created from CVE-2013-1981
- 2026-10-03 Alias added: GHSA-h27q-wm75-844h
References
Sources
- CVE-2013-1981 · CVE Program
- CVE-2013-1981 · NVD
- FIRST EPSS
- GHSA-h27q-wm75-844h · GitHub Advisory Database · CC BY 4.0
- CVE-2013-1981 · Red Hat security data · CC BY 4.0
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