VDB-142907 · CVE-2018-14881 · GCVE-0-2018-14881

tcpdump up to 4.9.2 BGP Parser print-bgp.c bgp_capabilities_print 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.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in tcpdump up to 4.9.2. The affected element is the function bgp_capabilities_print of the file print-bgp.c of the component BGP Parser. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2018-14881. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in tcpdump up to 4.9.2 (Packet Analyzer Software) and classified as critical. This issue affects the function bgp_capabilities_print of the file print-bgp.c of the component BGP Parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_capabilities_print() (BGP_CAPCODE_RESTART).

The weakness was disclosed 10/03/2019 (GitHub Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-14881 since 08/03/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 4.9.3 eliminates this vulnerability.

The entries VDB-142911, VDB-142910, VDB-142909 and VDB-142908 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Packet Analyzer Software

Name

tcpdump

Version

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: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tcpdump 4.9.3
Patch: github.com

Timelineinfo

08/03/2018 🔍
10/03/2019 +426 days 🔍
10/04/2019 +1 days 🔍
12/03/2025 +2252 days 🔍

Sourcesinfo

Product: tcpdump.org

Advisory: 86326e880d31b328a151d45348c35220baa9a1ff
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-14881 (🔍)
GCVE (CVE): GCVE-0-2018-14881
GCVE (VulDB): GCVE-100-142907
See also: 🔍

Entryinfo

Created: 10/04/2019 08:57
Updated: 12/03/2025 22:28
Changes: 10/04/2019 08:57 (59), 09/21/2020 09:09 (1), 01/03/2024 08:36 (5), 01/03/2024 08:38 (1), 12/03/2025 22:28 (20)
Complete: 🔍
Cache ID: 216::103

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