tcpdump up to 4.8.x Ethernet Parser print-ether.c ethertype_print memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in tcpdump up to 4.8.x. This issue affects the function ethertype_print of the file print-ether.c of the component Ethernet Parser. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2016-7926. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in tcpdump up to 4.8.x (Packet Analyzer Software). This affects the function ethertype_print of the file print-ether.c of the component Ethernet Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Ethernet parser in tcpdump before 4.9.0 has a buffer overflow in print-ether.c:ethertype_print().

The bug was discovered 01/27/2017. The weakness was released 01/28/2017 (Website). It is possible to read the advisory at mail-archive.com. This vulnerability is uniquely identified as CVE-2016-7926 since 09/09/2016. 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 of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 96844 (Debian DSA-3775-1 : tcpdump - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175951 (Debian Security Update for tcpdump (DSA 3775-1)).

Upgrading to version 4.9.0 eliminates this vulnerability. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96844) and SecurityFocus (BID 95852†). Entries connected to this vulnerability are available at VDB-96107, VDB-96108, VDB-96109 and VDB-96110. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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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Nessus ID: 96844
Nessus Name: Debian DSA-3775-1 : tcpdump - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801105
OpenVAS Name: Apple Mac OS X Multiple Vulnerabilities-HT207615
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: tcpdump 4.9.0

Timelineinfo

09/09/2016 🔍
01/27/2017 +140 days 🔍
01/27/2017 +0 days 🔍
01/27/2017 +0 days 🔍
01/28/2017 +1 days 🔍
01/28/2017 +0 days 🔍
01/29/2017 +1 days 🔍
01/30/2017 +1 days 🔍
11/04/2022 +2104 days 🔍

Sourcesinfo

Product: tcpdump.org

Advisory: RHSA-2017:1871
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7926 (🔍)
GCVE (CVE): GCVE-0-2016-7926
GCVE (VulDB): GCVE-100-96111

OVAL: 🔍

SecurityFocus: 95852 - tcpdump Multiple Buffer Overflow Vulnerabilities
OSVDB: - CVE-2016-7926 - tcpdump - Buffer Overflow Issue
SecurityTracker: 1037755

See also: 🔍

Entryinfo

Created: 01/28/2017 09:10
Updated: 11/04/2022 13:05
Changes: 01/28/2017 09:10 (84), 11/04/2022 13:05 (4)
Complete: 🔍
Cache ID: 216:CBB:103

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