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.
4.6	$0-$5k	0.00

A vulnerability was found in libmspack up to 0.4. It has been declared as problematic. This vulnerability affects the function lzxd_decompress of the file lzxd.c of the component CAB Archive Handler. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect availability. CVE summarizes:

Off-by-one error in the lzxd_decompress function in lzxd.c in libmspack before 0.5 allows remote attackers to cause a denial of service (buffer under-read and application crash) via a crafted CAB archive.

The weakness was published 06/11/2015 by Jakub Wilk as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. This vulnerability was named CVE-2015-4471 since 06/10/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 87122 (SUSE SLED11 Security Update : cabextract (SUSE-SU-2015:2131-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168364 (SUSE Enterprise Linux Security update for libmspack (SUSE-SU-2016:0011-1)).

Upgrading to version 0.5 eliminates this vulnerability. A possible mitigation has been published 7 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (103802) and Tenable (87122). Similar entries are available at 75845, 75846, 75847 and 75848.

Productinfo

Name

• libmspack

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 87122
Nessus Name: SUSE SLED11 Security Update : cabextract (SUSE-SU-2015:2131-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: libmspack 0.5
Patch: github.com

Timelineinfo

02/04/2015 🔍
02/04/2015 +0 days 🔍
06/10/2015 +126 days 🔍
06/11/2015 +1 days 🔍
06/11/2015 +0 days 🔍
06/12/2015 +1 days 🔍
11/27/2015 +168 days 🔍
12/01/2015 +4 days 🔍
01/19/2016 +49 days 🔍
05/21/2022 +2313 days 🔍

Sourcesinfo

Advisory: 18b6a2cc0b87536015bedd4f7763e6b02d5aa4f3
Researcher: Jakub Wilk
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4471 (🔍)
X-Force: 103802 - libmspack lzxd.c buffer overflow
Vulnerability Center: 55749 - libmspack <0.5 Remote DoS in LZX Decompression via CAB Archive, Medium
SecurityFocus: 72492 - Libmspack 'mspack/lzxd.c' Memory Corruption Vulnerability

See also: 🔍

Entryinfo

Created: 06/12/2015 10:34 AM
Updated: 05/21/2022 12:56 AM
Changes: 06/12/2015 10:34 AM (69), 07/05/2018 09:01 AM (9), 05/21/2022 12:56 AM (4)
Complete: 🔍

Discussion

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