libarchive 3.3.2 archive_read_support_format_xar.c atol8 Empty String memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in libarchive 3.3.2. This vulnerability affects the function atol8 of the file archive_read_support_format_xar.c. The manipulation as part of Empty String results in memory corruption. This vulnerability is cataloged as CVE-2017-14166. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in libarchive 3.3.2 (File Compression Software). Affected is the function atol8 of the file archive_read_support_format_xar.c. The manipulation as part of a Empty String leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

libarchive 3.3.2 allows remote attackers to cause a denial of service (xml_data heap-based buffer over-read and application crash) via a crafted xar archive, related to the mishandling of empty strings in the atol8 function in archive_read_support_format_xar.c.

The bug was discovered 09/06/2017. The weakness was shared 09/06/2017 by Agostino Sarubbo with Gentoo (Website). The advisory is shared for download at blogs.gentoo.org. This vulnerability is traded as CVE-2017-14166 since 09/06/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 103092 (Debian DLA-1092-1 : libarchive security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171705 (SUSE Enterprise Linux Security Update for libarchive (SUSE-SU-2018:3640-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103092) and SecurityFocus (BID 93781†). The entries VDB-95905, VDB-95915, VDB-95929 and VDB-95952 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 103092
Nessus Name: Debian DLA-1092-1 : libarchive security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53958
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1092-1] libarchive security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

10/15/2016 🔍
09/06/2017 +326 days 🔍
09/06/2017 +0 days 🔍
09/06/2017 +0 days 🔍
09/06/2017 +0 days 🔍
09/07/2017 +1 days 🔍
09/08/2017 +1 days 🔍
09/11/2017 +3 days 🔍
12/28/2022 +1934 days 🔍

Sourcesinfo

Product: github.com

Advisory: fa7438a0ff4033e4741c807394a9af6207940d71
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Confirmed

CVE: CVE-2017-14166 (🔍)
GCVE (CVE): GCVE-0-2017-14166
GCVE (VulDB): GCVE-100-106164

OVAL: 🔍

SecurityFocus: 93781 - libarchive Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 09/07/2017 08:54
Updated: 12/28/2022 07:00
Changes: 09/07/2017 08:54 (69), 11/13/2019 10:25 (14), 12/28/2022 06:46 (5), 12/28/2022 07:00 (1)
Complete: 🔍
Cache ID: 216:685:103

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