MIT Kerberos 5-1.2.2 File Descriptors lib/rpc/rpc_dtablesize.c memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in MIT Kerberos 5-1.2.2. The affected element is an unknown function in the library lib/rpc/rpc_dtablesize.c of the component File Descriptors. This manipulation causes memory corruption. This vulnerability is registered as CVE-2008-0948. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in MIT Kerberos 5-1.2.2 (Network Authentication Software) and classified as critical. Affected by this vulnerability is some unknown functionality in the library lib/rpc/rpc_dtablesize.c of the component File Descriptors. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the RPC library (lib/rpc/rpc_dtablesize.c) used by libgssrpc and kadmind in MIT Kerberos 5 (krb5) 1.2.2, and probably other versions before 1.3, when running on systems whose unistd.h does not define the FD_SETSIZE macro, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by triggering a large number of open file descriptors.

The bug was discovered 03/18/2008. The weakness was published 03/18/2008 with Red Hat Security Response Team as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2008-0948 since 02/25/2008. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 31609 (CentOS 3 : krb5 (CESA-2008:0181)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115824 (VMware Security Update (VMSA-2008-0008 and VMSA-2008-0009)).

Upgrading to version 5-1.2.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (41274), Tenable (31609), SecurityFocus (BID 28302†), OSVDB (43344†) and Secunia (SA29428†). Similar entries are available at VDB-3721, VDB-3722, VDB-3719 and VDB-3720. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

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

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 31609
Nessus Name: CentOS 3 : krb5 (CESA-2008:0181)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 880028
OpenVAS Name: Centreon command_name Parameter Remote Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Kerberos 5-1.2.2

Timelineinfo

02/25/2008 🔍
03/18/2008 +22 days 🔍
03/18/2008 +0 days 🔍
03/18/2008 +0 days 🔍
03/18/2008 +0 days 🔍
03/18/2008 +0 days 🔍
03/18/2008 +0 days 🔍
03/18/2008 +0 days 🔍
03/19/2008 +1 days 🔍
03/19/2008 +0 days 🔍
03/19/2008 +0 days 🔍
03/16/2015 +2553 days 🔍
01/12/2025 +3590 days 🔍

Sourcesinfo

Vendor: mit.edu

Advisory: kb.cert.org
Organization: Red Hat Security Response Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-0948 (🔍)
GCVE (CVE): GCVE-0-2008-0948
GCVE (VulDB): GCVE-100-41575

OVAL: 🔍

CERT: 🔍
X-Force: 41274
SecurityFocus: 28302 - MIT Kerberos5 kadmind Excessive File Descriptors Multiple Remote Code Execution Vulnerabilities
Secunia: 29428 - Kerberos Multiple Vulnerabilities, Highly Critical
OSVDB: 43344 - CVE-2008-0948 - MIT - Kerberos - Buffer Overflow Issue
SecurityTracker: 1019631
Vulnerability Center: 17945 - MIT Kerberos RPC Library Buffer Overflow Allows Remote Attacker to Cause Denial of Service - CVE-2008-0948, High
Vupen: ADV-2008-0922

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 01/12/2025 03:32
Changes: 03/16/2015 17:00 (88), 08/07/2019 11:13 (4), 01/12/2025 03:32 (16)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!