libarchive up to 3.1.x TAR File archive_read_support_format_ar.c _ar_read_header out-of-bounds
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability has been found in libarchive up to 3.1.x (File Compression Software) and classified as problematic. Affected by this vulnerability is the function _ar_read_header
of the file archive_read_support_format_ar.c of the component TAR File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:
The _ar_read_header function in archive_read_support_format_ar.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (out-of-bounds stack read) via a crafted ar file.
The weakness was shared 09/20/2016 (Website). It is possible to read the advisory at lists.opensuse.org. This vulnerability is known as CVE-2015-8920 since 06/17/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. 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 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 vulnerability database at Tenable (92312). The entries 90720, 91353, 91755 and 91756 are related to this item.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 5.5VulDB 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: 🔍
CVSSv2
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Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
ATT&CK: Unknown
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: libarchive 3.2.0
Timeline
06/17/2016 🔍06/20/2016 🔍
07/14/2016 🔍
07/15/2016 🔍
09/20/2016 🔍
09/20/2016 🔍
09/21/2016 🔍
09/19/2022 🔍
Sources
Advisory: USN-3033-1Status: Not defined
Confirmation: 🔍
CVE: CVE-2015-8920 (🔍)
OVAL: 🔍
SecurityFocus: 91301 - libarchive Stack Underflow CVE-2015-8920 Remote Code Execution Vulnerability
See also: 🔍
Entry
Created: 09/21/2016 12:24Updated: 09/19/2022 09:55
Changes: 09/21/2016 12:24 (67), 04/21/2019 12:25 (13), 09/19/2022 09:51 (4), 09/19/2022 09:55 (1)
Complete: 🔍
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