libarchive up to 3.1.x archive_string.c archive_string_append memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libarchive up to 3.1.x. The affected element is the function archive_string_append of the file archive_string.c. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2015-8918. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libarchive up to 3.1.x (File Compression Software). This issue affects the function archive_string_append of the file archive_string.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

The archive_string_append function in archive_string.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (crash) via a crafted cab files, related to "overlapping memcpy."

The weakness was disclosed 09/20/2016 (Website). The advisory is shared at lists.opensuse.org. The identification of this vulnerability is CVE-2015-8918 since 06/17/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 93187 (SUSE SLES11 Security Update : bsdtar (SUSE-SU-2016:1939-1)), 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 169015 (SUSE Enterprise Linux Security Update for bsdtar (SUSE-SU-2016:1939-1)).

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 databases at Tenable (93187) and SecurityFocus (BID 91300†). The entries VDB-91758, VDB-91759, VDB-91760 and VDB-91761 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 93187
Nessus Name: SUSE SLES11 Security Update : bsdtar (SUSE-SU-2016:1939-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for libarchive openSUSE-SU-2016:2036-1 (libarchive)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libarchive 3.2.0

Timelineinfo

06/17/2016 🔍
06/17/2016 +0 days 🔍
08/02/2016 +46 days 🔍
08/29/2016 +27 days 🔍
09/20/2016 +22 days 🔍
09/20/2016 +0 days 🔍
09/21/2016 +1 days 🔍
09/19/2022 +2189 days 🔍

Sourcesinfo

Product: github.com

Advisory: 506
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8918 (🔍)
GCVE (CVE): GCVE-0-2015-8918
GCVE (VulDB): GCVE-100-91757
SecurityFocus: 91300 - libarchive CVE-2015-8918 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/21/2016 12:24
Updated: 09/19/2022 09:43
Changes: 09/21/2016 12:24 (65), 04/21/2019 12:11 (13), 09/19/2022 09:43 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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