tcpdump 4.9.2 print-hncp.c print_prefix PCAP File out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in tcpdump 4.9.2. Affected is the function print_prefix of the file print-hncp.c. Executing a manipulation as part of PCAP File can lead to out-of-bounds. This vulnerability is tracked as CVE-2019-1010220. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in tcpdump 4.9.2 (Packet Analyzer Software). This vulnerability affects the function print_prefix of the file print-hncp.c. The manipulation as part of a PCAP File leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

tcpdump.org tcpdump 4.9.2 is affected by: CWE-126: Buffer Over-read. The impact is: May expose Saved Frame Pointer, Return Address etc. on stack. The component is: line 234: "ND_PRINT((ndo, "%s", buf));", in function named "print_prefix", in "print-hncp.c". The attack vector is: The victim must open a specially crafted pcap file.

The weakness was disclosed 07/22/2019 (Website). The advisory is shared for download at lists.fedoraproject.org. This vulnerability was named CVE-2019-1010220 since 03/20/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 257894 (Linux Distros Unpatched Vulnerability : CVE-2019-1010220), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (257894). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 257894
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-1010220

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/20/2019 🔍
07/22/2019 +124 days 🔍
07/23/2019 +1 days 🔍
08/30/2025 +2230 days 🔍

Sourcesinfo

Product: tcpdump.org

Advisory: USN-4252-1
Status: Not defined

CVE: CVE-2019-1010220 (🔍)
GCVE (CVE): GCVE-0-2019-1010220
GCVE (VulDB): GCVE-100-138412

Entryinfo

Created: 07/23/2019 06:35
Updated: 08/30/2025 20:15
Changes: 07/23/2019 06:35 (55), 07/09/2020 09:44 (1), 11/05/2023 09:56 (3), 08/30/2025 20:15 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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