tnef up to 1.4.12 parse_file out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in tnef up to 1.4.12 and classified as problematic. The impacted element is the function parse_file. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2017-6309. Local access is required to approach this attack. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in tnef up to 1.4.12. This issue affects the function parse_file. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in tnef before 1.4.13. Two type confusions have been identified in the parse_file() function. These might lead to invalid read and write operations, controlled by an attacker.

The bug was discovered 02/23/2017. The weakness was disclosed 02/24/2017 by Eric Sesterhenn with X41 D-Sec GmbH as not defined mailinglist post (Bugtraq). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2017-6309 since 02/23/2017. The exploitation is known to be difficult. Attacking locally is a requirement. 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 97418 (Debian DLA-839-2 : tnef regression 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 175976 (Debian Security Update for tnef (DSA 3798-1)).

Upgrading to version 1.4.13 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97418) and SecurityFocus (BID 96427†). The entries VDB-97245, VDB-97246 and VDB-97248 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

Researcher Base Score: 7.0
Researcher Vector: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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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: 97418
Nessus Name: Debian DLA-839-2 : tnef regression update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703798
OpenVAS Name: Debian Security Advisory DSA 3798-1 (tnef - 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: tnef 1.4.13

Timelineinfo

02/23/2017 🔍
02/23/2017 +0 days 🔍
02/23/2017 +0 days 🔍
02/23/2017 +0 days 🔍
02/24/2017 +1 days 🔍
02/24/2017 +0 days 🔍
02/28/2017 +4 days 🔍
03/24/2017 +24 days 🔍
08/17/2020 +1242 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Eric Sesterhenn
Organization: X41 D-Sec GmbH
Status: Not defined

CVE: CVE-2017-6309 (🔍)
GCVE (CVE): GCVE-0-2017-6309
GCVE (VulDB): GCVE-100-97247

OVAL: 🔍

SecurityFocus: 96427 - tnef Multiple Integer Overflow, Type Confusion and Out of Bounds Write Vulnerabilities
OSVDB: - CVE-2017-6309 - tnef - Multiple Type Confusion Issues

See also: 🔍

Entryinfo

Created: 02/24/2017 10:43
Updated: 08/17/2020 14:22
Changes: 02/24/2017 10:43 (85), 08/17/2020 14:22 (7)
Complete: 🔍
Cache ID: 216::103

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