libarchive up to 3.2.0 CPIO Archive archive_read_support_format_cpio.c archive_read_format_cpio_read_header input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in libarchive up to 3.2.0. It has been rated as problematic. This affects the function archive_read_format_cpio_read_header of the file archive_read_support_format_cpio.c of the component CPIO Archive Handler. This manipulation causes input validation. The identification of this vulnerability is CVE-2016-4809. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in libarchive up to 3.2.0 (File Compression Software). Affected by this vulnerability is the function archive_read_format_cpio_read_header of the file archive_read_support_format_cpio.c of the component CPIO Archive Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.

The weakness was shared 09/21/2016 (Website). It is possible to read the advisory at rhn.redhat.com. This vulnerability is known as CVE-2016-4809 since 05/16/2016. 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.

The vulnerability scanner Nessus provides a plugin with the ID 92312 (Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : libarchive vulnerabilities (USN-3033-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169015 (SUSE Enterprise Linux Security Update for bsdtar (SUSE-SU-2016:1939-1)).

Upgrading to version 3.2.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (92312) and SecurityFocus (BID 91813†). The entries VDB-90720, VDB-91353, VDB-91755 and VDB-91756 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92312
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : libarchive vulnerabilities (USN-3033-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 15621
OpenVAS Name: Amazon Linux Local Check: alas-2016-743
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libarchive 3.2.1
Patch: github.com

Timelineinfo

05/12/2016 🔍
05/16/2016 +4 days 🔍
07/14/2016 +59 days 🔍
07/15/2016 +1 days 🔍
09/21/2016 +68 days 🔍
09/21/2016 +0 days 🔍
09/22/2016 +1 days 🔍
09/19/2022 +2188 days 🔍

Sourcesinfo

Product: github.com

Advisory: 705
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4809 (🔍)
GCVE (CVE): GCVE-0-2016-4809
GCVE (VulDB): GCVE-100-91819

OVAL: 🔍

SecurityFocus: 91813 - libarchive CVE-2016-4809 Denial Of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/22/2016 09:22
Updated: 09/19/2022 14:20
Changes: 09/22/2016 09:22 (68), 04/22/2019 18:06 (13), 09/19/2022 14:19 (5), 09/19/2022 14:20 (1)
Complete: 🔍
Cache ID: 216::103

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