tcpdump up to 4.8.x AH Parser print-ah.c ah_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 marked as critical has been reported in tcpdump up to 4.8.x. Affected by this vulnerability is the function ah_print of the file print-ah.c of the component AH Parser. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-7922. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in tcpdump up to 4.8.x (Packet Analyzer Software) and classified as critical. This issue affects the function ah_print of the file print-ah.c of the component AH Parser. 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 AH parser in tcpdump before 4.9.0 has a buffer overflow in print-ah.c:ah_print().

The bug was discovered 01/27/2017. The weakness was disclosed 01/28/2017 (Website). It is possible to read the advisory at mail-archive.com. The identification of this vulnerability is CVE-2016-7922 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. 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 169952 (SUSE Enterprise Linux Security Update for tcpdump, libpcap (SUSE-SU-2017:1110-1)).

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†). The entries VDB-74079, VDB-74080, VDB-74082 and VDB-96108 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality 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: 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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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-2016-7922 (🔍)
GCVE (CVE): GCVE-0-2016-7922
GCVE (VulDB): GCVE-100-96107

OVAL: 🔍

SecurityFocus: 95852 - tcpdump Multiple Buffer Overflow Vulnerabilities
OSVDB: - CVE-2016-7922 - tcpdump - Buffer Overflow Issue
SecurityTracker: 1037755

See also: 🔍

Entryinfo

Created: 01/28/2017 09:09
Updated: 11/04/2022 12:37
Changes: 01/28/2017 09:09 (84), 11/04/2022 12:37 (4)
Complete: 🔍
Cache ID: 216:7A2:103

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

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