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6.8	$0-$5k	0.00

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 vulnerability database at Tenable (103092). The entries 95905, 95915, 95929 and 95952 are related to this item.

Productinfo

Type

• File Compression Software

Name

• libarchive

Version

• 3.3.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

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

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

CVE: CVE-2017-14166 (🔍)
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: 🔍

Discussion

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