Canonical Ubuntu Linux 12.04 alloca access control

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Canonical Ubuntu Linux 12.04. It has been rated as critical. Affected by this issue is the function alloca. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2012-3406. There is no exploit available.

Detailsinfo

A vulnerability was found in Canonical Ubuntu Linux 12.04 (Operating System). It has been classified as critical. This affects the function alloca. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2.5, 2.12, and probably other versions does not "properly restrict the use of" the alloca function when allocating the SPECS array, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (crash) or possibly execute arbitrary code via a crafted format string using positional parameters and a large number of format specifiers, a different vulnerability than CVE-2012-3404 and CVE-2012-3405.

The weakness was shared 02/10/2014 by Stefan Cornelius as Bug 826943 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2012-3406 since 06/14/2012. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 68582 (Oracle Linux 5 : glibc (ELSA-2012-1097)), 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 216049 (VMWare ESXi 5.1.0 Patch Complete Update 1 Missing (KB2041632)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (68582), SecurityFocus (BID 54374†) and Vulnerability Center (SBV-35836†). The entries VDB-4619, VDB-4675, VDB-4996 and VDB-5407 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68582
Nessus Name: Oracle Linux 5 : glibc (ELSA-2012-1097)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881175
OpenVAS Name: CentOS Update for glibc CESA-2012:1097 centos5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/14/2012 🔍
07/11/2012 +27 days 🔍
07/11/2012 +0 days 🔍
08/09/2012 +29 days 🔍
07/12/2013 +337 days 🔍
02/10/2014 +213 days 🔍
02/10/2014 +0 days 🔍
03/25/2015 +408 days 🔍
03/11/2022 +2543 days 🔍

Sourcesinfo

Advisory: Bug 826943
Researcher: Stefan Cornelius
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-3406 (🔍)
GCVE (CVE): GCVE-0-2012-3406
GCVE (VulDB): GCVE-100-69279

OVAL: 🔍

SecurityFocus: 54374 - GNU glibc Formatted Printing Functionality Multiple Security Vulnerabilities
Vulnerability Center: 35836 - GNU glibc Printing Functionality Flaw Allows Remote \x27FORTIFY_SOURCE\x27 Format String Protection Bypass, Medium

See also: 🔍

Entryinfo

Created: 03/25/2015 16:45
Updated: 03/11/2022 06:41
Changes: 03/25/2015 16:45 (64), 04/15/2017 16:24 (11), 03/11/2022 06:41 (3)
Complete: 🔍
Cache ID: 216:548:103

Be aware that VulDB is the high quality source for vulnerability data.

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