Apple macOS up to 10.12.3 tcpdump 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 Apple macOS up to 10.12.3. The affected element is an unknown function of the component tcpdump. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-7933. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple macOS up to 10.12.3 (Operating System). This issue affects an unknown functionality of the component tcpdump. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The PPP parser in tcpdump before 4.9.0 has a buffer overflow in print-ppp.c:ppp_hdlc_if_print().

The bug was discovered 01/27/2017. The weakness was disclosed 03/27/2017 as HT207615 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2016-7933 since 09/09/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Multiple issues existed in tcpdump before 4.9.0. These were addressed by updating tcpdump to version 4.9.0.

The vulnerability scanner Nessus provides a plugin with the ID 96884 (Debian DLA-809-1 : 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 10.12.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96884) and SecurityFocus (BID 95852†). The entries VDB-96107, VDB-96108, VDB-96109 and VDB-96110 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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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: 96884
Nessus Name: Debian DLA-809-1 : tcpdump security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703775
OpenVAS Name: Debian Security Advisory DSA 3775-1 (tcpdump - security update)
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: macOS 10.12.4

Timelineinfo

09/09/2016 🔍
01/27/2017 +140 days 🔍
01/27/2017 +0 days 🔍
01/27/2017 +0 days 🔍
01/31/2017 +4 days 🔍
03/27/2017 +55 days 🔍
03/27/2017 +0 days 🔍
03/28/2017 +1 days 🔍
05/16/2026 +3336 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT207615
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-7933 (🔍)
GCVE (CVE): GCVE-0-2016-7933
GCVE (VulDB): GCVE-100-98687

OVAL: 🔍

SecurityFocus: 95852 - tcpdump Multiple Buffer Overflow Vulnerabilities
OSVDB: - CVE-2016-7933 - tcpdump - Buffer Overflow Issue
SecurityTracker: 1037755

scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 03/28/2017 11:24
Updated: 05/16/2026 15:41
Changes: 03/28/2017 11:24 (86), 11/20/2022 11:50 (3), 05/16/2026 15:41 (15)
Complete: 🔍
Cache ID: 216::103

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