libarchive 3.1.0 RAR Decoder archive_read_support_format_rar.c Archive use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in libarchive 3.1.0. The affected element is an unknown function of the file libarchive/archive_read_support_format_rar.c of the component RAR Decoder. Executing a manipulation as part of Archive can lead to use after free. This vulnerability is registered as CVE-2018-1000878. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in libarchive 3.1.0 (File Compression Software) and classified as critical. This vulnerability affects some unknown functionality of the file libarchive/archive_read_support_format_rar.c of the component RAR Decoder. The manipulation as part of a Archive leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

The bug was discovered 12/13/2018. The weakness was published 12/20/2018 (Website). The advisory is shared for download at bugs.launchpad.net. This vulnerability was named CVE-2018-1000878 since 12/20/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 119893 (Debian DSA-4360-1 : 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 176551 (Debian Security Update for libarchive (DSA 4360-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (119893) and SecurityFocus (BID 106324†). Similar entries are available at VDB-128199, VDB-128201, VDB-128202 and VDB-130474. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 119893
Nessus Name: Debian DSA-4360-1 : libarchive - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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

12/13/2018 🔍
12/20/2018 +7 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/21/2018 +1 days 🔍
12/27/2018 +6 days 🔍
12/28/2018 +1 days 🔍
06/20/2023 +1635 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2019:2298
Status: Confirmed

CVE: CVE-2018-1000878 (🔍)
GCVE (CVE): GCVE-0-2018-1000878
GCVE (VulDB): GCVE-100-128200

OVAL: 🔍

SecurityFocus: 106324 - Libarchive Multiple Denial Of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 12/21/2018 10:55
Updated: 06/20/2023 10:42
Changes: 12/21/2018 10:55 (77), 04/22/2020 16:32 (5), 06/20/2023 10:42 (5)
Complete: 🔍
Cache ID: 216::103

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