X.Org libxcb up to 1.8.1 Graphical Library read_packet numeric error

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8.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in X.Org libxcb up to 1.8.1. Affected is the function read_packet of the component Graphical Library. This manipulation causes numeric error. This vulnerability is tracked as CVE-2013-2064. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in X.Org libxcb up to 1.8.1 and classified as critical. Affected by this vulnerability is the function read_packet of the component Graphical Library. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in X.org libxcb 1.9 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the read_packet function.

The weakness was disclosed 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 has been coordinated in cooperation with X.Org. This vulnerability is known as CVE-2013-2064 since 02/19/2013. The exploitation appears to be difficult. The attack can be launched remotely. A single authentication is needed for exploitation. Technical details and also a private exploit are known.

The vulnerability scanner Nessus provides a plugin with the ID 67114 (SuSE 11.2 Security Update : xorg-x11-libxcb (SAT Patch Number 7760)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE 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 1.9.1 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 (84519), Tenable (67114), SecurityFocus (BID 60148†), OSVDB (93664†) and Secunia (SA53506†). The entries VDB-8875, VDB-8876, VDB-8877 and VDB-8878 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 9.9
VulDB Temp Score: 8.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67114
Nessus Name: SuSE 11.2 Security Update : xorg-x11-libxcb (SAT Patch Number 7760)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892686
OpenVAS Name: Debian Security Advisory DSA 2686-1 (libxcb - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: libxcb 1.9.1
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 🔍
06/29/2013 +14 days 🔍
05/14/2021 +2876 days 🔍

Sourcesinfo

Vendor: x.org

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

CVE: CVE-2013-2064 (🔍)
GCVE (CVE): GCVE-0-2013-2064
GCVE (VulDB): GCVE-100-8887

OVAL: 🔍

X-Force: 84519
SecurityFocus: 60148 - X.Org libxcb 'read_packet()' Function Remote Code Execution Vulnerability
Secunia: 53506 - Debian update for libxcb, Less Critical
OSVDB: 93664
Vulnerability Center: 39931 - libxcb Through 1.9 Remote Code Execution due to Integer Overflow in read_packet(), Medium

See also: 🔍

Entryinfo

Created: 05/27/2013 17:46
Updated: 05/14/2021 07:54
Changes: 05/27/2013 17:46 (85), 05/02/2017 08:32 (4), 05/14/2021 07:54 (3)
Complete: 🔍
Committer:
Cache ID: 216:3BB:103

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