libarchive up to 3.1.x 7z File archive_read_support_format_7zip.c null pointer dereference

CVSS Meta Temp Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in libarchive up to 3.1.x. It has been classified as problematic. Affected is an unknown function of the file archive_read_support_format_7zip.c of the component 7z File Handler. Performing a manipulation results in null pointer dereference. This vulnerability is identified as CVE-2015-8922. The attack is only possible with local access. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in libarchive up to 3.1.x (File Compression Software). It has been classified as problematic. This affects an unknown code block of the file archive_read_support_format_7zip.c of the component 7z File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

The read_CodersInfo cuntion in archive_read_support_format_7zip.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (NULL pointer derference and crash) via a crafted 7z file, related to the _7z_folder struct.

The weakness was released 09/20/2016 (Website). The advisory is shared at lists.opensuse.org. This vulnerability is uniquely identified as CVE-2015-8922 since 06/17/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

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 196532 (Ubuntu Security Notification for Libarchive Vulnerabilities (USN-3033-1)).

Upgrading to version 3.2.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (92312) and SecurityFocus (BID 91312†). Entries connected to this vulnerability are available at VDB-90720, VDB-91353, VDB-91755 and VDB-91756. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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 3.2.0

Timelineinfo

06/17/2016 🔍
06/17/2016 +0 days 🔍
07/14/2016 +27 days 🔍
07/15/2016 +1 days 🔍
09/20/2016 +67 days 🔍
09/20/2016 +0 days 🔍
09/21/2016 +1 days 🔍
09/19/2022 +2189 days 🔍

Sourcesinfo

Advisory: USN-3033-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8922 (🔍)
GCVE (CVE): GCVE-0-2015-8922
GCVE (VulDB): GCVE-100-91761

OVAL: 🔍

SecurityFocus: 91312 - libarchive CVE-2015-8922 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/21/2016 12:24
Updated: 09/19/2022 10:05
Changes: 09/21/2016 12:24 (66), 04/21/2019 12:34 (13), 09/19/2022 10:02 (4), 09/19/2022 10:05 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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