Link Grammar up to 4.1b tokenize.c separate_word memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Link Grammar up to 4.1b. The impacted element is the function separate_word of the file tokenize.c. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2007-5395. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Link Grammar up to 4.1b. It has been declared as critical. Affected by this vulnerability is the function separate_word of the file tokenize.c. 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:

Stack-based buffer overflow in the separate_word function in tokenize.c in Link Grammar 4.1b and possibly other versions, as used in AbiWord Link Grammar 4.2.4, allows remote attackers to execute arbitrary code via a long word, as reachable through the separate_sentence function.

The bug was discovered 11/07/2007. The weakness was disclosed 11/07/2007 by Alin Rad Pop (Website). It is possible to read the advisory at redhat.com. This vulnerability is known as CVE-2007-5395 since 10/12/2007. The exploitation appears to be easy. 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 28266 (GLSA-200711-27 : Link Grammar: User-assisted execution of arbitrary code), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo 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.

The vulnerability is also documented in the databases at X-Force (38317), Tenable (28266), SecurityFocus (BID 26365†), OSVDB (42074†) and Secunia (SA27300†). 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: 10.0
VulDB Meta Temp Score: 9.0

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

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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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: 🔍

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Nessus ID: 28266
Nessus Name: GLSA-200711-27 : Link Grammar: User-assisted execution of arbitrary code
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60043
OpenVAS Name: Debian Security Advisory DSA 1432-1 (link-grammar)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/11/2007 🔍
10/12/2007 +93 days 🔍
11/07/2007 +26 days 🔍
11/07/2007 +0 days 🔍
11/07/2007 +0 days 🔍
11/07/2007 +0 days 🔍
11/07/2007 +0 days 🔍
11/18/2007 +11 days 🔍
11/19/2007 +1 days 🔍
11/20/2007 +1 days 🔍
03/16/2015 +2673 days 🔍
07/31/2019 +1598 days 🔍

Sourcesinfo

Advisory: redhat.com
Researcher: Alin Rad Pop
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-5395 (🔍)
GCVE (CVE): GCVE-0-2007-5395
GCVE (VulDB): GCVE-100-39607

OVAL: 🔍

X-Force: 38317
SecurityFocus: 26365 - Link Grammar SEPARATE_WORD Function Remote Buffer Overflow Vulnerability
Secunia: 27300 - Link Grammar "separate_sentence()" Buffer Overflow, Moderately Critical
OSVDB: 42074 - Link Grammar - SEPARATE_WORD Function Remote - Buffer Overflow Issue
Vulnerability Center: 16879 - AbiWord Link Grammar Buffer Overflow Allows Remote Attackers to Execute Arbitrary Code, High
Vupen: ADV-2007-3770

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/31/2019 09:51
Changes: 03/16/2015 12:18 (79), 07/31/2019 09:51 (5)
Complete: 🔍
Cache ID: 216:AA4:103

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

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