Apple macOS up to 10.13.1 tcpdump memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.13.1. It has been classified as critical. Affected is an unknown function of the component tcpdump. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2017-12998. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as very critical was found in Apple macOS up to 10.13.1 (Operating System). Affected by this vulnerability is an unknown code block of the component tcpdump. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The IS-IS parser in tcpdump before 4.9.2 has a buffer over-read in print-isoclns.c:isis_print_extd_ip_reach().

The bug was discovered 09/11/2017. The weakness was shared 10/31/2017 as HT208221 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is known as CVE-2017-12998 since 08/21/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/05/2023). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Multiple issues were addressed by updating to version 4.9.2.

The vulnerability scanner Nessus provides a plugin with the ID 100472 (AIX 5.3 TL 12 : tcpdump (IV94729)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 330033 (IBM AIX tcpdump Multiple Vulnerabilities (tcpdump_advisory3)).

Upgrading to version 10.13.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100472). The entries VDB-21822, VDB-21823, VDB-106590 and VDB-106591 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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: 100472
Nessus Name: AIX 5.3 TL 12 : tcpdump (IV94729)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53377
OpenVAS Name: Debian Security Advisory DSA 3971-1 (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 10.13.1
Patch: github.com

Timelineinfo

05/30/2017 🔍
08/21/2017 +83 days 🔍
09/11/2017 +21 days 🔍
09/14/2017 +3 days 🔍
10/31/2017 +47 days 🔍
10/31/2017 +0 days 🔍
11/03/2017 +3 days 🔍
01/05/2023 +1889 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT208221
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12998 (🔍)
GCVE (CVE): GCVE-0-2017-12998
GCVE (VulDB): GCVE-100-109009

OVAL: 🔍

SecurityTracker: 1039307

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

Entryinfo

Created: 11/03/2017 15:27
Updated: 01/05/2023 17:15
Changes: 11/03/2017 15:27 (78), 12/03/2019 16:32 (3), 01/22/2021 12:48 (2), 01/05/2023 17:15 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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