Aspell 0.50.5 compress.c c/d stack-based overflow

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8.8$0-$5k0.00

A vulnerability was found in Aspell 0.50.5. It has been declared as critical. Affected by this vulnerability is an unknown part of the file compress.c. The manipulation of the argument c/d with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple stack-based buffer overflows in the word-list-compress functionality in compress.c for Aspell allow local users to execute arbitrary code via a long entry in the wordlist that is not properly handled when using the (1) "c" compress option or (2) "d" decompress option.

The weakness was shared 06/08/2004 by Shaun Colley (shaun2k2) as confirmed posting (Bugtraq). It is possible to read the advisory at marc.theaimsgroup.com. This vulnerability is known as CVE-2004-0548 since 06/09/2004. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed by c0d3r in ANSI C and been published before and not just after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 16015 (Mandrake Linux Security Advisory : aspell (MDKSA-2004:153)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (16371), Tenable (16015) and Exploit-DB (669). The entries 61278, 79334, 80152 and 100239 are related to this item.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.3
VulDB Temp Score: 8.8
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Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: c0d3r
Programming Language: 🔍
Download: 🔍

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Nessus ID: 16015
Nessus Name: Mandrake Linux Security Advisory : aspell (MDKSA-2004:153)
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OpenVAS ID: 54599
OpenVAS Name: Gentoo Security Advisory GLSA 200406-14 (aspell)
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: no mitigation known
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Timelineinfo

06/08/2004 🔍
06/08/2004 +0 days 🔍
06/08/2004 +0 days 🔍
06/08/2004 +0 days 🔍
06/09/2004 +0 days 🔍
06/18/2004 +9 days 🔍
06/18/2004 +0 days 🔍
08/06/2004 +48 days 🔍
12/01/2004 +117 days 🔍
12/21/2004 +20 days 🔍
12/29/2010 +2199 days 🔍
04/14/2015 +1567 days 🔍
06/30/2021 +2269 days 🔍

Sourcesinfo

Advisory: marc.theaimsgroup.com
Researcher: Shaun Colley (shaun2k2)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2004-0548 (🔍)
X-Force: 16371
Vulnerability Center: 28876 - Compress.c for Aspell Local Arbitrary Code Execution Vulnerability, Medium
SecurityFocus: 10497 - GNU Aspell Stack Buffer Overflow Vulnerability
Secunia: 11828 - Aspell word-list-compress Word List Processing Buffer Overflow, Less Critical
OSVDB: 7125 - Aspell word-list-compress Local Overflow

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/14/2015 13:15
Updated: 06/30/2021 07:09
Changes: 04/14/2015 13:15 (68), 03/12/2017 17:16 (19), 06/30/2021 07:09 (3)
Complete: 🔍

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