VDB-130929 · CVE-2019-8377 · ID 536

tcpreplay 4.3.1 tcpreplay-edit get.c get_ipv6_l4proto PCAP File null pointer dereference

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in tcpreplay 4.3.1. The impacted element is the function get_ipv6_l4proto of the file get.c of the component tcpreplay-edit. Performing a manipulation as part of PCAP File results in null pointer dereference. This vulnerability is cataloged as CVE-2019-8377. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in tcpreplay 4.3.1. It has been classified as problematic. This affects the function get_ipv6_l4proto of the file get.c of the component tcpreplay-edit. The manipulation as part of a PCAP File 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. The summary by CVE is:

An issue was discovered in Tcpreplay 4.3.1. A NULL pointer dereference occurred in the function get_ipv6_l4proto() located at get.c. This can be triggered by sending a crafted pcap file to the tcpreplay-edit binary. It allows an attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.

The bug was discovered 02/13/2019. The weakness was shared 02/17/2019 (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2019-8377 since 02/16/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-130928 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

tcpreplay

Version

4.3.1

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/13/2019 🔍
02/16/2019 +3 days 🔍
02/17/2019 +1 days 🔍
02/17/2019 +0 days 🔍
07/10/2023 +1604 days 🔍

Sourcesinfo

Advisory: 536⛔
Status: Not defined

CVE: CVE-2019-8377 (🔍)
GCVE (CVE): GCVE-0-2019-8377
GCVE (VulDB): GCVE-100-130929
SecurityFocus: 107085

See also: 🔍

Entryinfo

Created: 02/17/2019 10:19
Updated: 07/10/2023 16:26
Changes: 02/17/2019 10:19 (57), 05/10/2020 20:52 (2), 07/10/2023 16:17 (4), 07/10/2023 16:26 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.