ytnef up to 1.9.0 integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in ytnef up to 1.9.0. Affected by this issue is some unknown functionality. The manipulation leads to integer overflow. This vulnerability is documented as CVE-2017-6303. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in ytnef up to 1.9.0 (Document Reader Software) and classified as critical. This issue affects an unknown code. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in ytnef before 1.9.1. This is related to a patch described as "6 of 9. Invalid Write and Integer Overflow."

The bug was discovered 02/23/2017. The weakness was released 02/24/2017 by Eric Sesterhenn with X41 D-Sec GmbH (Website). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2017-6303 since 02/23/2017. 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. Neither technical details nor an exploit are publicly available.

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†). Entries connected to this vulnerability are available at VDB-97236, VDB-97237, VDB-97238 and VDB-97239. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

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

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: Integer overflow
CWE: CWE-190 / CWE-189
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 🔍
08/16/2020 +1235 days 🔍

Sourcesinfo

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

CVE: CVE-2017-6303 (🔍)
GCVE (CVE): GCVE-0-2017-6303
GCVE (VulDB): GCVE-100-97241

OVAL: 🔍

SecurityFocus: 96423 - ytnef Multiple Security Vulnerabilities
OSVDB: - CVE-2017-6303 - ytnef - Integer Overflow Issue

See also: 🔍

Entryinfo

Created: 02/24/2017 10:42
Updated: 08/16/2020 17:43
Changes: 02/24/2017 10:42 (76), 08/16/2020 17:43 (7)
Complete: 🔍
Cache ID: 216::103

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

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