libarchive 3.2.2 archive_string.c archive_wstring_append_from_mbs null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in libarchive 3.2.2. This affects the function archive_wstring_append_from_mbs of the file archive_string.c. The manipulation results in null pointer dereference. This vulnerability was named CVE-2016-10209. The attack needs to be approached locally. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in libarchive 3.2.2 (File Compression Software). Affected is the function archive_wstring_append_from_mbs of the file archive_string.c. 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. CVE summarizes:

The archive_wstring_append_from_mbs function in archive_string.c in libarchive 3.2.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive file.

The bug was discovered 12/13/2016. The weakness was presented 04/03/2017 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2016-10209 since 02/07/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 111 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99609 (Fedora 25 : libarchive (2017-55a8f10223)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora 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 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99609) and SecurityFocus (BID 97327†). See VDB-100756, VDB-100757, VDB-106164 and VDB-106749 for similar entries. 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: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.3
VulDB Temp Score: 2.9
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: 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: 99609
Nessus Name: Fedora 25 : libarchive (2017-55a8f10223)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for libarchive FEDORA-2017-55a8f10223
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: 🔍

Timelineinfo

12/13/2016 🔍
02/07/2017 +56 days 🔍
04/03/2017 +55 days 🔍
04/03/2017 +0 days 🔍
04/03/2017 +0 days 🔍
04/04/2017 +1 days 🔍
04/22/2017 +18 days 🔍
04/24/2017 +2 days 🔍
11/24/2022 +2040 days 🔍

Sourcesinfo

Product: github.com

Advisory: FEDORA-2017-55a8f10223
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10209 (🔍)
GCVE (CVE): GCVE-0-2016-10209
GCVE (VulDB): GCVE-100-99228

OVAL: 🔍

SecurityFocus: 97327 - libarchive CVE-2016-10209 Denial Of Service Vulnerability
OSVDB: - CVE-2016-10209 - libarchive - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/03/2017 16:50
Updated: 11/24/2022 16:20
Changes: 04/03/2017 16:50 (75), 08/25/2020 10:31 (8), 11/24/2022 16:05 (4), 11/24/2022 16:13 (1), 11/24/2022 16:20 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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