Icu Project International Components for Unicode up to 3.8.1 resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Icu Project International Components for Unicode up to 3.8.1. It has been classified as critical. The affected element is an unknown function of the component International Components for Unicode. This manipulation causes resource management. This vulnerability is tracked as CVE-2007-4770. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Icu Project International Components for Unicode up to 3.8.1 (Project Management Software). Affected by this vulnerability is an unknown code block of the component International Components for Unicode. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the nonexistent capture group zero (aka \0), which might allow context-dependent attackers to read from, or write to, out-of-bounds memory locations, related to corruption of REStackFrames.

The bug was discovered 01/22/2008. The weakness was disclosed 01/28/2008 by Will Drewry (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2007-4770 since 09/10/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67646 (Oracle Linux 5 : icu (ELSA-2008-0090)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165709 (SUSE Enterprise Linux Security Update (SUSE-SR:2008:005)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (39938), Tenable (67646), SecurityFocus (BID 27455†), OSVDB (41189†) and Secunia (SA28575†). The entries VDB-3520, VDB-25650, VDB-32045 and VDB-36698 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67646
Nessus Name: Oracle Linux 5 : icu (ELSA-2008-0090)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60496
OpenVAS Name: Debian Security Advisory DSA 1511-1 (libicu)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/10/2007 🔍
01/22/2008 +134 days 🔍
01/25/2008 +3 days 🔍
01/25/2008 +0 days 🔍
01/25/2008 +0 days 🔍
01/28/2008 +3 days 🔍
01/28/2008 +0 days 🔍
01/28/2008 +0 days 🔍
02/04/2008 +7 days 🔍
07/12/2013 +1985 days 🔍
03/16/2015 +612 days 🔍
08/04/2019 +1602 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Will Drewry
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-4770 (🔍)
GCVE (CVE): GCVE-0-2007-4770
GCVE (VulDB): GCVE-100-40717

OVAL: 🔍

X-Force: 39938
SecurityFocus: 27455 - International Components for Unicode Library (libicu) Multiple Memory Corruption Vulnerabilities
Secunia: 28575
OSVDB: 41189 - CVE-2007-4770 - International Components for Unicode - Modification Issue
SecurityTracker: 1019269
Vulnerability Center: 17527 - International Components for Unicode (ICU) Allows Attackers to Read and Write Memory Locations, Low
Vupen: ADV-2008-0282

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/04/2019 16:15
Changes: 03/16/2015 13:43 (75), 08/04/2019 16:15 (13)
Complete: 🔍
Cache ID: 216:43F:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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