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.
5.4	$0-$5k	0.00

A vulnerability, which was classified as problematic, has been found in libarchive up to 3.1.x (File Compression Software). Affected by this issue is the function trad_enc_decrypt_update of the file archive_read_support_format_zip.c of the component ZIP Password Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The software reads data past the end, or before the beginning, of the intended buffer. Impacted is availability.

The weakness was released 09/20/2016 (Website). The advisory is available at openwall.com. This vulnerability is handled as CVE-2015-8927 since 06/17/2016. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 96234 (GLSA-201701-03 : libarchive: Multiple vulnerabilities), 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 local.

Upgrading to version 3.2.0 eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (96234). Entries connected to this vulnerability are available at 91754, 91755 and 91756.

Productinfo

Type

• File Compression Software

Name

• libarchive

License

• open-source

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

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: Out-of-bounds
CWE: CWE-125 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 96234
Nessus Name: GLSA-201701-03 : libarchive: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: libarchive 3.2.0

Timelineinfo

06/17/2016 🔍
06/17/2016 +0 days 🔍
09/20/2016 +95 days 🔍
09/20/2016 +0 days 🔍
09/21/2016 +1 days 🔍
01/01/2017 +102 days 🔍
01/03/2017 +2 days 🔍
09/19/2022 +2085 days 🔍

Sourcesinfo

Advisory: 523
Status: Not defined

CVE: CVE-2015-8927 (🔍)
SecurityFocus: 91329 - libarchive CVE-2015-8927 Heap Buffer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 09/21/2016 12:25 PM
Updated: 09/19/2022 10:56 AM
Changes: 09/21/2016 12:25 PM (62), 04/21/2019 02:17 PM (12), 09/19/2022 10:56 AM (4)
Complete: 🔍

Discussion

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