libarchive 3.2.1 mtree bidder archive_read_support_format_mtree.c detect_form/bid_entry out-of-bounds

CVSS Meta Temp Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in libarchive 3.2.1. The impacted element is the function detect_form/bid_entry of the file libarchive/archive_read_support_format_mtree.c of the component mtree bidder. Performing a manipulation results in out-of-bounds. This vulnerability is known as CVE-2016-8688. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in libarchive 3.2.1 (File Compression Software). This affects the function detect_form/bid_entry of the file libarchive/archive_read_support_format_mtree.c of the component mtree bidder. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. The summary by CVE is:

The mtree bidder in libarchive 3.2.1 does not keep track of line sizes when extending the read-ahead, which allows remote attackers to cause a denial of service (crash) via a crafted file, which triggers an invalid read in the (1) detect_form or (2) bid_entry function in libarchive/archive_read_support_format_mtree.c.

The bug was discovered 02/15/2017. The weakness was published 02/15/2017 by Agostino Sarubbo with Gentoo (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-8688 since 10/15/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 95367 (SUSE SLED12 / SLES12 Security Update : libarchive (SUSE-SU-2016:2911-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176840 (Debian Security Update for libarchive (DLA 1600-1)).

Upgrading 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 (95367) and SecurityFocus (BID 93781†). Similar entries are available at VDB-90247, VDB-91754, VDB-91826 and VDB-91827. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 95367
Nessus Name: SUSE SLED12 / SLES12 Security Update : libarchive (SUSE-SU-2016:2911-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 57947
OpenVAS Name: Fedora Update for mingw-libarchive FEDORA-2016-dd2aa2b4a9
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/15/2016 🔍
10/15/2016 +0 days 🔍
11/25/2016 +41 days 🔍
11/28/2016 +3 days 🔍
02/15/2017 +79 days 🔍
02/15/2017 +0 days 🔍
02/15/2017 +0 days 🔍
02/16/2017 +1 days 🔍
08/15/2020 +1276 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-8688 (🔍)
GCVE (CVE): GCVE-0-2016-8688
GCVE (VulDB): GCVE-100-97005
SecurityFocus: 93781 - libarchive Multiple Security Vulnerabilities
OSVDB: - CVE-2016-8688 - libarchive - Out-of-Bounds Read Issue

See also: 🔍

Entryinfo

Created: 02/16/2017 09:01
Updated: 08/15/2020 09:23
Changes: 02/16/2017 09:01 (74), 08/15/2020 09:23 (8)
Complete: 🔍
Cache ID: 216::103

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