VDB-151659 · CVE-2018-19325 · GCVE-0-2018-19325

tcpdump 4.9.2 extract.h rx_cache_find out-of-bounds

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in tcpdump 4.9.2. This affects the function rx_cache_find of the file extract.h. Performing a manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2018-19325. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in tcpdump 4.9.2 (Packet Analyzer Software). This affects the function rx_cache_find of the file extract.h. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

tcpdump 4.9.2 (and probably lower versions) is prone to a heap-based buffer over-read in the EXTRACT_32BITS function (extract.h, called from the rx_cache_find function, print-rx.c) due to improper serviceId sanitization.

The weakness was shared 03/16/2020. This vulnerability is uniquely identified as CVE-2018-19325 since 11/17/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Packet Analyzer Software

Name

tcpdump

Version

4.9.2

License

open-source

Website

Product: https://www.tcpdump.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
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

11/17/2018 🔍
03/16/2020 +485 days 🔍
03/17/2020 +1 days 🔍
03/17/2020 +0 days 🔍

Sourcesinfo

Product: tcpdump.org

Status: Not defined

CVE: CVE-2018-19325 (🔍)
GCVE (CVE): GCVE-0-2018-19325
GCVE (VulDB): GCVE-100-151659

Entryinfo

Created: 03/17/2020 08:19
Updated: 03/17/2020 08:24
Changes: 03/17/2020 08:19 (35), 03/17/2020 08:24 (18)
Complete: 🔍
Cache ID: 216::103