libarchive up to 3.3.x archive_read_support_format_rar.c 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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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in libarchive up to 3.3.x. This affects an unknown part of the file archive_read_support_format_rar.c. Such manipulation leads to use after free. This vulnerability is documented as CVE-2019-18408. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libarchive up to 3.3.x (File Compression Software). Affected by this issue is some unknown functionality of the file archive_read_support_format_rar.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive before 3.4.0 has a use-after-free in a certain ARCHIVE_FAILED situation, related to Ppmd7_DecodeSymbol.

The weakness was released 10/24/2019. This vulnerability is handled as CVE-2019-18408 since 10/24/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 239805 (TencentOS Server 3: libarchive (TSSA-2022:0019)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.4.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (239805). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

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

NVD Base Score: 7.5
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: 239805
Nessus Name: TencentOS Server 3: libarchive (TSSA-2022:0019)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libarchive 3.4.0
Patch: github.com

Timelineinfo

10/24/2019 🔍
10/24/2019 +0 days 🔍
10/25/2019 +1 days 🔍
06/20/2025 +2065 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2020:0203
Status: Confirmed

CVE: CVE-2019-18408 (🔍)
GCVE (CVE): GCVE-0-2019-18408
GCVE (VulDB): GCVE-100-144146

Entryinfo

Created: 10/25/2019 08:27
Updated: 06/20/2025 04:36
Changes: 10/25/2019 08:27 (36), 10/25/2019 08:32 (18), 01/27/2024 10:05 (6), 06/20/2025 04:36 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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