X.Org libXi up to 1.7.1 Graphical Library memory corruption

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8.6$0-$5k0.00

A vulnerability classified as critical has been found in X.Org libXi up to 1.7.1. This affects the function XGetDeviceButtonMapping/_XIPassiveGrabDevice/XQueryDeviceState of the component Graphical Library. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in X.org libXi 1.7.1 and earlier allow X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length or index values to the (1) XGetDeviceButtonMapping, (2) XIPassiveGrabDevice, and (3) XQueryDeviceState functions.

The weakness was presented 05/23/2013 by Ilja van Sprundel with IOActive as not defined advisory (Website). It is possible to read the advisory at x.org. The public release was coordinated in cooperation with X.Org. This vulnerability is uniquely identified as CVE-2013-1998 since 02/19/2013. The exploitability is told to be difficult. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. Technical details and a private exploit are known.

The vulnerability scanner Nessus provides a plugin with the ID 66567 (Debian DSA-2683-1 : libxi - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350250 (Amazon Linux Security Advisory for libX11,libXcursor,libXfixes,libXi,libXrandr,libXrender,libXres,libXt,libXv,libXvMC,libXxf86dga,libXxf86vm,libdmx,xorg-x11-proto-devel: ALAS-2014-452).

Upgrading to version 1.7.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.freedesktop.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (84502) and Tenable (66567). See 8875, 8876, 8877 and 8878 for similar entries.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.9
VulDB Temp Score: 8.6
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Unproven

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Nessus ID: 66567
Nessus Name: Debian DSA-2683-1 : libxi - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892683
OpenVAS Name: Debian Security Advisory DSA 2683-1 (libxi - several vulnerabilities
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Upgrade: libXi 1.7.2
Patch: cgit.freedesktop.org

Timelineinfo

02/19/2013 🔍
05/23/2013 +93 days 🔍
05/23/2013 +0 days 🔍
05/23/2013 +0 days 🔍
05/23/2013 +0 days 🔍
05/24/2013 +1 days 🔍
05/27/2013 +3 days 🔍
06/10/2013 +14 days 🔍
06/15/2013 +5 days 🔍
05/14/2021 +2890 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: x.org
Researcher: Ilja van Sprundel
Organization: IOActive
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-1998 (🔍)
OVAL: 🔍

X-Force: 84502
Vulnerability Center: 39927 - libXi Through 1.7.1 Remote Code Execution due to Buffer Overflow in XGetDeviceButtonMapping(), _XIPassiveGrabDevice() and XQueryDeviceState(), Medium
SecurityFocus: 60127 - X.Org libXi CVE-2013-1998 Multiple Remote Code Execution Vulnerabilities
Secunia: 53510 - Debian update for libxi, Less Critical
OSVDB: 93660

See also: 🔍

Entryinfo

Created: 05/27/2013 17:40
Updated: 05/14/2021 07:29
Changes: 05/27/2013 17:40 (83), 05/02/2017 08:31 (4), 05/14/2021 07:29 (3)
Complete: 🔍

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