libpcap up to 1.9.0 PHB Header sf-pcapng.c allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in libpcap up to 1.9.0. It has been declared as critical. This impacts an unknown function of the file sf-pcapng.c of the component PHB Header Handler. The manipulation results in input validation. This vulnerability is reported as CVE-2019-15165. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in libpcap up to 1.9.0. Affected is some unknown processing of the file sf-pcapng.c of the component PHB Header Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

The weakness was disclosed 10/03/2019 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2019-15165 since 08/19/2019. 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 MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 1.9.1 eliminates this vulnerability.

The entries VDB-142928, VDB-142929, VDB-142930 and VDB-142931 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 5.3
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: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libpcap 1.9.1
Patch: github.com

Timelineinfo

08/19/2019 🔍
10/03/2019 +45 days 🔍
10/04/2019 +1 days 🔍
12/03/2025 +2252 days 🔍

Sourcesinfo

Advisory: 87d6bef033062f969e70fa40c43dfd945d5a20ab
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-15165 (🔍)
GCVE (CVE): GCVE-0-2019-15165
GCVE (VulDB): GCVE-100-142932
See also: 🔍

Entryinfo

Created: 10/04/2019 09:14
Updated: 12/03/2025 21:18
Changes: 10/04/2019 09:14 (57), 09/21/2020 10:36 (1), 01/03/2024 11:23 (5), 01/03/2024 11:31 (1), 12/03/2025 21:18 (21)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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