X.org libX11 1.0.2/1.0.3/1.5.0 Macro MakeBigReq numeric error

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in X.org libX11. Affected by this issue is the function MakeBigReq of the component Macro Handler. The manipulation results in numeric error. This vulnerability is known as CVE-2013-7439. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in X.org libX11. Affected is the function MakeBigReq of the component Macro Handler. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 04/07/2015 by Marc Deslauriers as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. This vulnerability is traded as CVE-2013-7439 since 04/09/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 82785 (Debian DLA-199-1 : libx11 security update), 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 123718 (Oracle Solaris 10 Multiple Vulnerabilities (Third Party Bulletin - July 2015)).

Upgrading to version 1.5.99.901 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (102137), Tenable (82785), SecurityFocus (BID 73962†) and Vulnerability Center (SBV-49966†). Further details are available at seclists.org. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
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: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

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Nessus ID: 82785
Nessus Name: Debian DLA-199-1 : libx11 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703224
OpenVAS Name: Debian Security Advisory DSA 3224-1 (libx11 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Upgrade: libX11 1.5.99.901

Timelineinfo

04/07/2015 🔍
04/07/2015 +0 days 🔍
04/07/2015 +0 days 🔍
04/09/2015 +2 days 🔍
04/13/2015 +4 days 🔍
04/15/2015 +2 days 🔍
04/16/2015 +1 days 🔍
05/04/2015 +18 days 🔍
12/15/2024 +3513 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: USN-2568-1
Researcher: Marc Deslauriers
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-7439 (🔍)
GCVE (CVE): GCVE-0-2013-7439
GCVE (VulDB): GCVE-100-74790

OVAL: 🔍

X-Force: 102137 - libX11 MakeBigReq macro buffer overflow
SecurityFocus: 73962 - X.Org libX11 'MakeBigReq()' Macro Buffer Overflow Vulnerability
Vulnerability Center: 49966 - X11R6.x and libX11 before 1.6.0 Remote Unspecified Vulnerability due to Off-by-One Errors, High

Misc.: 🔍

Entryinfo

Created: 04/13/2015 09:10
Updated: 12/15/2024 10:34
Changes: 04/13/2015 09:10 (62), 06/28/2017 06:19 (13), 05/03/2022 18:55 (3), 05/03/2022 19:03 (1), 12/15/2024 10:34 (18)
Complete: 🔍
Cache ID: 216:388:103

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