Red Hat Certificate System up to 7.2 null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Red Hat Certificate System up to 7.2. It has been classified as problematic. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2012-4555. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Red Hat Certificate System up to 7.2. This affects an unknown code block. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

The token processing system (pki-tps) in Red Hat Certificate System (RHCS) before 8.1.3 does not properly handle interruptions of token format operations, which allows remote attackers to cause a denial of service (NULL pointer dereference and Apache httpd web server child process crash) via unspecified vectors.

The weakness was disclosed 01/04/2013 by ryan with Red Hat as Bug 869570 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2012-4555 since 08/21/2012. The exploitability is told to be easy. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 78943 (RHEL 5 : pki (RHSA-2012:1550)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks.

Upgrading to version 7.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (78943), SecurityFocus (BID 56843†), Secunia (SA51482†) and SecurityTracker (ID 1027846†). The entries VDB-63328 and VDB-63326 are pretty similar. 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: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 78943
Nessus Name: RHEL 5 : pki (RHSA-2012:1550)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Certificate System 7.3

Timelineinfo

08/21/2012 🔍
12/06/2012 +107 days 🔍
12/06/2012 +0 days 🔍
01/04/2013 +29 days 🔍
01/04/2013 +0 days 🔍
03/24/2015 +809 days 🔍
12/21/2021 +2464 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: Bug 869570
Researcher: ryan
Organization: Red Hat
Status: Confirmed

CVE: CVE-2012-4555 (🔍)
GCVE (CVE): GCVE-0-2012-4555
GCVE (VulDB): GCVE-100-63327
SecurityFocus: 56843 - Red Hat Certificate System Multiple Cross-Site Scripting and Denial of Service Vulnerabilities
Secunia: 51482
SecurityTracker: 1027846

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/21/2021 13:39
Changes: 03/24/2015 12:22 (51), 02/09/2018 13:55 (14), 12/21/2021 13:39 (3)
Complete: 🔍
Cache ID: 216::103

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

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