KMPlayer 2018.12.24.14 Subtitle Media File integer underflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in KMPlayer 2018.12.24.14. This affects an unknown part of the component Subtitle Handler. The manipulation as part of Media File results in integer underflow. This vulnerability was named CVE-2019-9133. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in KMPlayer 2018.12.24.14 (Multimedia Player Software). It has been classified as critical. Affected is an unknown code block of the component Subtitle Handler. The manipulation as part of a Media File leads to a integer underflow vulnerability. CWE is classifying the issue as CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

When processing subtitles format media file, KMPlayer version 2018.12.24.14 or lower doesn't check object size correctly, which leads to integer underflow then to memory out-of-bound read/write. An attacker can exploit this issue by enticing an unsuspecting user to open a malicious file.

The bug was discovered 04/05/2019. The weakness was presented 04/09/2019 (Website). The advisory is available at lists.fedoraproject.org. This vulnerability is traded as CVE-2019-9133 since 02/25/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (KrCERT/CC): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / 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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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/25/2019 🔍
04/05/2019 +39 days 🔍
04/09/2019 +4 days 🔍
04/10/2019 +1 days 🔍
08/28/2023 +1601 days 🔍

Sourcesinfo

Advisory: FEDORA-2019-32a2bf945e
Status: Not defined

CVE: CVE-2019-9133 (🔍)
GCVE (CVE): GCVE-0-2019-9133
GCVE (VulDB): GCVE-100-133278

Entryinfo

Created: 04/10/2019 09:24
Updated: 08/28/2023 11:05
Changes: 04/10/2019 09:24 (55), 05/28/2020 16:41 (2), 08/28/2023 10:59 (3), 08/28/2023 11:05 (12)
Complete: 🔍
Cache ID: 216::103

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