libarchive up to 3.1.x ZIP Password archive_read_support_format_zip.c trad_enc_decrypt_update out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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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 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.





  • open-source

CPE 2.3info

CPE 2.2info


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: 🔍



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

NVD Base Score: 🔍


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: 🔍


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: 🔍


Recommended: Upgrade
Status: 🔍

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

Upgrade: libarchive 3.2.0


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 🔍


Advisory: 523
Status: Not defined

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

See also: 🔍


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: 🔍


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