ypserv up to 2.5 Map Request yp_db.c ypdb_open memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in ypserv up to 2.5 and classified as problematic. This impacts the function ypdb_open of the file yp_db.c of the component Map Request Handler. The manipulation leads to memory leak. This vulnerability is uniquely identified as CVE-2002-1232. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ypserv up to 2.5. This issue affects the function ypdb_open of the file yp_db.c of the component Map Request Handler. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. The summary by CVE is:

Memory leak in ypdb_open in yp_db.c for ypserv before 2.5 in the NIS package 3.9 and earlier allows remote attackers to cause a denial of service (memory consumption) via a large number of requests for a map that does not exist.

The bug was discovered 08/10/2002. The weakness was disclosed 11/04/2002 (Website). It is possible to read the advisory at ftp.caldera.com. The identification of this vulnerability is CVE-2002-1232. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 86 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 13976 (Mandrake Linux Security Advisory : ypserv (MDKSA-2002:078)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 590.

The vulnerability is also documented in the databases at X-Force (10423), Tenable (13976), SecurityFocus (BID 6016†), OSVDB (14513†) and Vulnerability Center (SBV-15075†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Memory leak
CWE: CWE-401 / 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: 13976
Nessus Name: Mandrake Linux Security Advisory : ypserv (MDKSA-2002:078)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53432
OpenVAS Name: Debian Security Advisory DSA 180-1 (nis)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Snort ID: 590
Snort Message: PROTOCOL-RPC portmap ypserv request UDP
Snort Class: 🔍

Suricata ID: 2101276
Suricata Class: 🔍
Suricata Message: 🔍
SourceFire IPS: 🔍

Timelineinfo

08/10/2002 🔍
10/21/2002 +72 days 🔍
11/04/2002 +14 days 🔍
11/04/2002 +0 days 🔍
11/04/2002 +0 days 🔍
11/18/2002 +14 days 🔍
07/31/2004 +621 days 🔍
05/13/2007 +1016 days 🔍
07/30/2014 +2635 days 🔍
07/18/2019 +1814 days 🔍

Sourcesinfo

Advisory: ftp.caldera.com
Status: Not defined

CVE: CVE-2002-1232 (🔍)
GCVE (CVE): GCVE-0-2002-1232
GCVE (VulDB): GCVE-100-19127
X-Force: 10423
SecurityFocus: 6016 - YPServ Remote Network Information Leakage Vulnerability
OSVDB: 14513 - ypserv previously existing map request memory leak
Vulnerability Center: 15075 - NIS Package 3.9 and earlier ypserv <2.5 Memory Leak Allow Remote Denial of Service, High

Entryinfo

Created: 07/30/2014 18:15
Updated: 07/18/2019 22:27
Changes: 07/30/2014 18:15 (79), 07/18/2019 22:27 (5)
Complete: 🔍
Cache ID: 216::103

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