ytnef up to 1.9.0 lib/ytnef.c. TNEFFillMapi infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in ytnef up to 1.9.0. It has been rated as problematic. This affects the function TNEFFillMapi in the library lib/ytnef.c.. This manipulation causes infinite loop. This vulnerability is tracked as CVE-2017-6299. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in ytnef up to 1.9.0 (Document Reader Software). Affected by this vulnerability is the function TNEFFillMapi in the library lib/ytnef.c.. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. The summary by CVE is:

An issue was discovered in ytnef before 1.9.1. This is related to a patch described as "2 of 9. Infinite Loop / DoS in the TNEFFillMapi function in lib/ytnef.c."

The bug was discovered 02/23/2017. The weakness was disclosed 02/24/2017 by Eric Sesterhenn with X41 D-Sec GmbH (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2017-6299 since 02/23/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 99044 (Debian DLA-878-1 : libytnef 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 176025 (Debian Security Update for libytnef (DSA 3846-1)).

Upgrading to version 1.9.1 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99044) and SecurityFocus (BID 96423†). The entries VDB-97236, VDB-97238, VDB-97239 and VDB-97240 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
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: 99044
Nessus Name: Debian DLA-878-1 : libytnef security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703846
OpenVAS Name: Debian Security Advisory DSA 3846-1 (libytnef - 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: ytnef 1.9.1

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 🔍
03/28/2017 +32 days 🔍
03/30/2017 +2 days 🔍
10/15/2019 +929 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Eric Sesterhenn
Organization: X41 D-Sec GmbH
Status: Not defined

CVE: CVE-2017-6299 (🔍)
GCVE (CVE): GCVE-0-2017-6299
GCVE (VulDB): GCVE-100-97237

OVAL: 🔍

SecurityFocus: 96423 - ytnef Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 02/24/2017 10:40
Updated: 10/15/2019 07:01
Changes: 02/24/2017 10:40 (77), 10/15/2019 07:01 (6)
Complete: 🔍
Cache ID: 216:810:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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