KDE Konqueror 4.7.3 khtml/css/cssparser.cpp memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

A vulnerability, which was classified as critical, has been found in KDE Konqueror 4.7.3 (Web Browser). This issue affects an unknown code block of the file khtml/css/cssparser.cpp. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was released 10/10/2012 by Tim Brown with Nth Dimension as 22406 as confirmed posting (Exploit-DB). It is possible to read the advisory at exploit-db.com. The public release was coordinated with KDE. The identification of this vulnerability is CVE-2012-4512 since 08/21/2012. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed by Tim Brown and been published immediately after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 68650 (Oracle Linux 6 : kdelibs (ELSA-2012-1418)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166215 (SUSE Enterprise Linux Security Update for kdelibs4 (SUSE-SU-2013:1559-1)).

Applying the patch a872c8a969a8bd3706253d6ba24088e4f07f3352 is able to eliminate this problem. The bugfix is ready for download at projects.kde.org.

The vulnerability is also documented in the databases at Exploit-DB (22406), Tenable (68650), OSVDB (86847†), Secunia (SA51097†) and SecurityTracker (ID 1027709†). Entries connected to this vulnerability are available at VDB-6847, VDB-6848, VDB-6849 and VDB-52161.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.4
VulDB Meta Temp Score: 8.9

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Tim Brown
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68650
Nessus Name: Oracle Linux 6 : kdelibs (ELSA-2012-1418)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881530
OpenVAS Name: CentOS Update for kdelibs CESA-2012:1416 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: a872c8a969a8bd3706253d6ba24088e4f07f3352

Timelineinfo

08/21/2012 🔍
10/10/2012 +50 days 🔍
10/10/2012 +0 days 🔍
10/31/2012 +21 days 🔍
10/31/2012 +0 days 🔍
10/31/2012 +0 days 🔍
11/01/2012 +1 days 🔍
11/01/2012 +0 days 🔍
11/04/2012 +3 days 🔍
11/05/2012 +1 days 🔍
07/12/2013 +249 days 🔍
09/23/2024 +4091 days 🔍

Sourcesinfo

Vendor: kde.org

Advisory: 22406
Researcher: Tim Brown
Organization: Nth Dimension
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-4512 (🔍)
OVAL: 🔍

Secunia: 51097 - KDE kdelibs Multiple Vulnerabilities, Highly Critical
OSVDB: 86847
SecurityTracker: 1027709 - kdelibs Heap Overflows Let Remote Users Execute Arbitrary Code
Vulnerability Center: 36933 - KDE Konqueror 4.7.3 Type Confusion Vulnerability Leading to Memory Disclosure - CVE-2012-4512, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/05/2012 09:45 AM
Updated: 09/23/2024 02:14 AM
Changes: 11/05/2012 09:45 AM (78), 08/20/2017 10:15 PM (7), 04/18/2021 05:26 PM (1), 04/18/2021 05:32 PM (18), 04/18/2021 05:37 PM (1), 09/23/2024 02:14 AM (15)
Complete: 🔍
Committer: olku
Cache ID: 18:F76:40

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